Journal of Contemporary Dental Practice最新文献

{"title":"Comparison of Nanosurface Evaluation and Antimicrobial Efficacy of Calcium Hydroxide-Coated Stainless Steel and Zirconia Crowns in Pediatric Dentistry: An Atomic Force Microscopic Study.","authors":"Somya Seth, Ramesh Ravikumar","doi":"10.5005/jp-journals-10024-4011","DOIUrl":"https://doi.org/10.5005/jp-journals-10024-4011","url":null,"abstract":"<p><strong>Aim: </strong>To compare the nano-surface characteristics and antimicrobial efficacy of calcium hydroxide-coated stainless steel crowns (SSCs) and zirconia crowns using atomic force microscopy (AFM) and agar diffusion method.</p><p><strong>Materials and methods: </strong>An <i>in vitro</i> study was conducted using 10 crowns, divided into two groups: Five calcium hydroxide-coated zirconia crowns (Group I) and five calcium hydroxide-coated SSCs (Group II). Both crown types were uniformly coated with calcium hydroxide nanoparticles. Nanosurface topography was assessed using AFM, and antimicrobial activity against <i>Streptococcus mutans</i> and <i>Lactobacillus</i> species was evaluated using the agar well diffusion method. Antimicrobial plates were incubated for 24 hours before zone measurement. Data were analyzed using the Mann-Whitney <i>U</i> test, with <i>p</i> < 0.05 considered statistically significant.</p><p><strong>Results: </strong>Atomic force microscopy analysis revealed significantly higher nanoscale surface roughness in zirconia crowns compared to SSCs. Antimicrobial testing demonstrated markedly larger zones of inhibition for zirconia crowns against <i>S. mutans</i> and <i>Lactobacillus</i> compared to SSCs, statistically indicating highly significant differences.</p><p><strong>Conclusion: </strong>Calcium hydroxide-coated zirconia crowns exhibit superior nanoscale roughness and enhanced antimicrobial efficacy compared to calcium hydroxide coated stainless steel crowns.</p><p><strong>Clinical significance: </strong>This study addresses the clinical need for restorative options that not only restore form and function but also actively contribute to caries prevention in high-risk patients. Enhancing the antibacterial performance of preformed crowns through calcium hydroxide coatings may help limit bacterial colonization at crown margins, reduce the incidence of secondary caries, and support better longevity of both zirconia and SSCs. How to cite this article: Seth S, Ravikumar R. Comparison of Nanosurface Evaluation and Antimicrobial Efficacy of Calcium Hydroxide-Coated Stainless Steel and Zirconia Crowns in Pediatric Dentistry: An Atomic Force Microscopic Study. J Contemp Dent Pract 2026;27(1):37-43.</p>","PeriodicalId":35792,"journal":{"name":"Journal of Contemporary Dental Practice","volume":"27 1","pages":"37-43"},"PeriodicalIF":0.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147445327","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Efficacy and Safety of Thalidomide for the Treatment of Minor Recurrent Aphthous Stomatitis: A Systematic Review.","authors":"Sulaiman S Alqahtani, Mohammed M Al Moaleem, Ibrahim Ma Qudhan, Hassan Hm Zakri, Ali Ma Tumayhi, Waleed My Moafa, Abdullah Aa Sahli, Abdullah S Sayd, Anas S Al-Zaghruri","doi":"10.5005/jp-journals-10024-3978","DOIUrl":"https://doi.org/10.5005/jp-journals-10024-3978","url":null,"abstract":"&lt;p&gt;&lt;strong&gt;Aim: &lt;/strong&gt;This study presents a systematic review of the therapeutic potential and safety profile of thalidomide in managing minor recurrent aphthous stomatitis (RAS).&lt;/p&gt;&lt;p&gt;&lt;strong&gt;Methods: &lt;/strong&gt;A PRISMA-guided systematic review was conducted using PubMed, Cochrane, ScienceDirect, Google Scholar, Semantic Scholar, and Wangfang. The search was performed from January 2014 to April 2025. Studies were selected based on the participants, intervention, control, and outcome (PICO) framework: (1) Population: Healthy individuals with minor RAS; (2) Intervention: Thalidomide; (3) Comparison: Placebo or standard therapy; (4) Outcomes: Recurrence interval, number of ulcers, healing time, pain intensity, complete and partial response rates, ulcer-free period, immunological parameters, and adverse effects.&lt;/p&gt;&lt;p&gt;&lt;strong&gt;Results: &lt;/strong&gt;Out of 1,600 initially retrieved records, 404 titles and abstracts were screened after removing duplicates, and 21 full texts were assessed. Five randomized clinical trials (RCTs) involving 607 participants met the eligibility criteria, which showed that thalidomide, especially at 25 mg/day for 8 weeks, significantly prolonged recurrence intervals and reduced ulcer count in patients with minor RAU. This regimen also resulted in the longest ulcer-free and relapse-free periods. Pain reduction and healing time improvement were inconsistent across studies. Some trials reported significant reductions in inflammatory markers (IL-6, TNF-α), especially with the 25 mg regimen. Combination therapy with multivitamins or glucosides of Paeony showed potential added benefits. Thalidomide was generally well tolerated, but mild side effects were more common compared to non-thalidomide treatments. Risk of bias was low for randomization but unclear or high in blinding and allocation.&lt;/p&gt;&lt;p&gt;&lt;strong&gt;Conclusion: &lt;/strong&gt;Thalidomide at a dose of 25 mg/day for 8 weeks appears effective in managing minor RAS by prolonging recurrence intervals and modulating anti-inflammatory markers. Its overall acceptable safety profile supports its consideration in selected patients; however, clinicians should remain vigilant for potential mild side effects.&lt;/p&gt;&lt;p&gt;&lt;strong&gt;Clinical significance: &lt;/strong&gt;Thalidomide administered at 25 mg/day for 8 weeks demonstrates meaningful clinical benefits for patients with recurrent minor aphthous ulcers by notably prolonging remission intervals and lowering ulcer frequency and provides anti-inflammatory advantages, making it a valuable therapeutic option for patients who do not respond adequately to conventional treatments. While generally well tolerated, with mainly mild adverse effects, careful patient selection and monitoring remain essential to minimize risks and maximize therapeutic outcomes. How to cite this article: Alqahtani SS, Al Moaleem MM, Qudhan IMA, &lt;i&gt;et al&lt;/i&gt;. Efficacy and Safety of Thalidomide for the Treatment of Minor Recurrent Aphthous Stomatitis: A Systematic Review. J Contemp Dent P","PeriodicalId":35792,"journal":{"name":"Journal of Contemporary Dental Practice","volume":"27 1","pages":"83-91"},"PeriodicalIF":0.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147445395","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evaluation of the Efficacy of Smear Layer Removal Using Different Irrigation Activation Methods during Root Canal Treatment: An <i>In Vitro</i> Study.","authors":"K Geonath Immanuel, Preethi Anju, Sneha Sanap, Saicharan Gorre, Nada M Ibrahim, Mustafa H Alattas, Mazen F Alkahtany","doi":"10.5005/jp-journals-10024-4004","DOIUrl":"https://doi.org/10.5005/jp-journals-10024-4004","url":null,"abstract":"<p><strong>Aim: </strong>The current investigation aimed to assess the effectiveness of smear layer removal during root canal therapy utilizing three different irrigation activation techniques.</p><p><strong>Materials and methods: </strong>The study included 60 human mandibular premolars that were recently extracted for orthodontic and periodontal reasons. The samples were decoronated with a diamond disc to provide a standard working length (WL) of 14 mm, and then the root canal preparation was completed. These samples were divided into three groups at random, each containing 20 samples (<i>n</i> = 20). Group I: Conventional needle irrigation; group II: Ultrasonic activation; and group III: EndoVac (EV) activation. The efficacy of smear layer removal in the coronal, middle, and apical thirds of all canals was assessed using a scanning electron microscope (SEM) with a magnification of 2,000×. Data were collected and analyzed statistically.</p><p><strong>Results: </strong>In the conventional needle irrigation group, the maximum smear layer removal was found in the middle third (0.72 ± 0.10), followed by the coronal third (0.80 ± 0.01) and the apical third (1.10 ± 0.14). No significant difference was found on intragroup comparison. In the irrigation with ultrasonic activation group, the maximum smear layer removal was found in the apical third (0.44 ± 0.02), followed by the middle third (0.48 ± 0.10) and the coronal third (0.64 ± 0.08). A significant difference was found on intragroup comparison. In the irrigation with EV activation group, the maximum smear layer removal was found in the apical third (0.20 ± 0.04), followed by the middle third (0.36 ± 0.18) and the coronal third (0.62 ± 0.04). A significant difference was found on intragroup comparison.</p><p><strong>Conclusion: </strong>The current investigation concluded that the EV system group removed more of the smear layer than the ultrasonic activation and conventional needle irrigation group.</p><p><strong>Clinical significance: </strong>The smear layer created during root canal instrumentation has a detrimental effect on root canal irrigation activity, which may have an impact on the endodontic treatment's prognosis. When an efficient irrigation delivery system is used, the irrigants can reach the WL. This kind of distribution method must have sufficient flow, be efficient in debriding the entire canal system, and supply an appropriate quantity of irrigants up to the WL. How to cite this article: Immanuel KG, Anju P, Sanap S, <i>et al</i>. Evaluation of the Efficacy of Smear Layer Removal Using Different Irrigation Activation Methods during Root Canal Treatment: An <i>In Vitro</i> Study. J Contemp Dent Pract 2026;27(1):55-58.</p>","PeriodicalId":35792,"journal":{"name":"Journal of Contemporary Dental Practice","volume":"27 1","pages":"55-58"},"PeriodicalIF":0.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147444255","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Abnormal Tongue Behavior with Its Imaginable Influence on the Posterior Mandibular Dentoalveolar Structure.","authors":"Mustafa Mh Alsultan, Saba H Al Zubaidi, Niam R Alsaleem","doi":"10.5005/jp-journals-10024-4014","DOIUrl":"https://doi.org/10.5005/jp-journals-10024-4014","url":null,"abstract":"<p><strong>Aim: </strong>This study aims to evaluate the probable impression of the tongue forces on the posterior mandibular dentoalveolar structure through the assessment of the reflected stress distribution and the possible resultant displacement by finite element analysis on the mandibular model.</p><p><strong>Materials and methods: </strong>The AutoCAD (2010) software was used to design the three-dimensional mandibular study model for finite element analysis. A force of 2, 90, and 500 g/cm² that represents the forces expressed by the tongue during the normal rest posture, the normal function, and abnormal function, respectively, is applied perpendicularly to the lingual aspect of the mandibular model posterior portion.</p><p><strong>Results: </strong>Higher displacement values in the three axes of space <i>X</i>, <i>Y</i>, and <i>Z</i> are complementary to high von Mises stresses seen in abnormal tongue function state, and lowest for the normal rest posture, with normal function state in between.</p><p><strong>Conclusion: </strong>This study showed that abnormal lingual habits possibly have an adverse effect on the mandibular posterior structure. It may lead to abnormal deviation in the form and position during growth. How to cite this article: Alsultan MMH, Al Zubaidi SH, Alsaleem NR. Abnormal Tongue Behavior with Its Imaginable Influence on the Posterior Mandibular Dentoalveolar Structure. J Contemp Dent Pract 2026;27(1):27-32.</p>","PeriodicalId":35792,"journal":{"name":"Journal of Contemporary Dental Practice","volume":"27 1","pages":"27-32"},"PeriodicalIF":0.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147445319","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evaluation of the Effects of Micro-osteoperforation and Injectable Platelet-rich Fibrin on the External Root Resorption: A Split-mouth Prospective Study.","authors":"Priyanka Niranjane, Kushal P Taori, Krushnali Kolhatkar","doi":"10.5005/jp-journals-10024-4017","DOIUrl":"https://doi.org/10.5005/jp-journals-10024-4017","url":null,"abstract":"<p><strong>Aim: </strong>To evaluate and compare the effects of micro-osteoperforations (MOPs) and injectable platelet-rich fibrin (I-PRF) on external apical root resorption (EARR) during maxillary canine retraction using a split-mouth prospective study design.</p><p><strong>Materials and methods: </strong>Twenty orthodontic patients (mean age 22.8 ± 2.7 years) who required first premolar extractions bilaterally were recruited. In each subject, one quadrant was randomly assigned to MOP and the contralateral quadrant to I-PRF. All patients underwent fixed appliance therapy with a pre-adjusted edgewise system, and maxillary canines were retracted with NiTi closed-coil springs delivering 150 gm of force. Micro-osteoperforations were performed at the initiation of retraction, whereas I-PRF was injected monthly. To measure changes in root length, cone-beam computed tomography (CBCT) images of the patients were taken both prior to and following full canine retraction (T0 and T1, respectively). Statistical analysis was completed using unpaired and paired <i>t</i>-tests (<i>p</i> < 0.05).</p><p><strong>Results: </strong>Both groups demonstrated significant root length reduction after retraction (<i>p</i> < 0.05). The mean EARR in the MOP group was 1.21 ± 0.25 mm, while the I-PRF group showed 1.00 ± 0.10 mm of resorption. Despite the MOP group's somewhat higher resorption, there were no clinically noteworthy distinctions between the two categories (<i>p</i> > 0.05).</p><p><strong>Conclusion: </strong>Micro-osteoperforations and I-PRF are both effective adjuncts for facilitating orthodontic tooth movement (OTM); however, both approaches are associated with measurable root resorption. There is no statistically significant difference observed between the two techniques in terms of minimizing EARR.</p><p><strong>Clinical significance: </strong>While MOPs and I-PRF can shorten treatment duration, clinicians should remain cautious of their potential to induce root resorption. Injectable PRF may offer additional biological benefits owing to its regenerative properties, but long-term studies with larger samples should be done before definitive clinical recommendations are suggested. How to cite this article: Niranjane P, Taori KP, Kolhatkar K. Evaluation of the Effects of Micro-osteoperforation and Injectable Platelet-rich Fibrin on the External Root Resorption: A Split-mouth Prospective Study. J Contemp Dent Pract 2026;27(1):78-82.</p>","PeriodicalId":35792,"journal":{"name":"Journal of Contemporary Dental Practice","volume":"27 1","pages":"78-82"},"PeriodicalIF":0.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147445363","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Perceived Smile Esthetics and Psychosocial Impact of Orthodontic Treatment in Individuals with Definite Malocclusion: A Cross-sectional Study.","authors":"Rahul Sinha, Shipra Nagar, Ashish Kumar, Vimal Thareja, Neha Thakur, Neha Agrawal","doi":"10.5005/jp-journals-10024-3937","DOIUrl":"https://doi.org/10.5005/jp-journals-10024-3937","url":null,"abstract":"&lt;p&gt;&lt;strong&gt;Aim: &lt;/strong&gt;To assess the perceived smile esthetics and psychosocial impact of orthodontic treatment in individuals with definite malocclusion.&lt;/p&gt;&lt;p&gt;&lt;strong&gt;Materials and methods: &lt;/strong&gt;A cross-sectional observational study was conducted on 333 Indian individuals aged 12-40 years with untreated malocclusion of various types. A validated questionnaire based on the Psychosocial Impact of Dental Aesthetics Questionnaire (PIDAQ) was used, covering eight domains: Self-confidence, social impact, esthetic concerns, psychological impact, speech impairment, functional limitations, matrimonial concerns, and career concerns. Each of the 16 items was scored on a 5-point Likert scale. Data were statistically analyzed using SPSS (Version 30.0), with significance set at &lt;i&gt;p&lt;/i&gt; &lt; 0.05. Reliability was assessed using Cronbach's α.&lt;/p&gt;&lt;p&gt;&lt;strong&gt;Results: &lt;/strong&gt;The study sample comprised &lt;i&gt;n&lt;/i&gt; = 333 Indian individuals between 12 and 40 years of age. The overall questionnaire reliability was acceptable (α = 0.751). Self-confidence concerns showed no gender difference (males: 72, 31.6%; females: 151, 34.5%; &lt;i&gt;p&lt;/i&gt; = 0.162). Esthetic concern was higher in males (91, 39.9% with no concern) than in females (243, 55.5%; &lt;i&gt;p&lt;/i&gt; = 0.001). Social impact was reported more by males (98, 43.0%) than by females (110, 25.1%; &lt;i&gt;p&lt;/i&gt; &lt; 0.001). Matrimonial concerns were greater in males (28, 12.3% severe) compared to females, where most (270, 61.6%) had no concern (&lt;i&gt;p&lt;/i&gt; &lt; 0.001). Functional difficulty was more frequent in males (23, 10.1% severe) vs females (18, 4.1%), with 300 females (68.5%) unaffected (&lt;i&gt;p&lt;/i&gt; &lt; 0.001). Career, speech, and psychological concerns were also significantly higher among males, while females more often reported no concern across domains.&lt;/p&gt;&lt;p&gt;&lt;strong&gt;Conclusion: &lt;/strong&gt;The study demonstrates that individuals with definite malocclusion perceive a substantial psychosocial and esthetic burden even before undergoing orthodontic treatment. Participants commonly reported diminished self-image, lower social confidence, and emotional distress, indicating that malocclusion affects more than just dental function. These perceptions were key motivators for seeking orthodontic intervention, reflecting the strong influence of appearance- and confidence-related concerns, alongside functional needs, on their decision to pursue treatment.&lt;/p&gt;&lt;p&gt;&lt;strong&gt;Clinical significance: &lt;/strong&gt;Malocclusion affects not only dental alignment but also mental well-being, self-esteem, and social interactions. This study highlights the importance of assessing psychosocial impacts in untreated individuals to establish meaningful pretreatment benchmarks. Orthodontic care emerges as a transformative intervention that enhances self-image, emotional stability, and overall quality of life. Incorporating patient-reported outcomes into routine assessment allows for more holistic and personalized treatment planning. How to cite this article: Sinha R, Nag","PeriodicalId":35792,"journal":{"name":"Journal of Contemporary Dental Practice","volume":"27 1","pages":"44-50"},"PeriodicalIF":0.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147445021","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evaluation of the Overbite Depth Indicator and Anteroposterior Dysplasia Index in a Sample of the Arab Population.","authors":"Raed H Alrbata, Anwar S Rahamneh","doi":"10.5005/jp-journals-10024-4012","DOIUrl":"https://doi.org/10.5005/jp-journals-10024-4012","url":null,"abstract":"<p><strong>Aim: </strong>To evaluate the mean overbite depth indicator (ODI) and anteroposterior dysplasia index (APDI) values in a sample of Arab Jordanian individuals and compare these findings to the original reference norms.</p><p><strong>Materials and methods: </strong>A total of 240 subjects (mean age: 10.54 ± 2.3 years), comprising 123 females and 117 males, were selected based on the presence of an angle class I molar relationship and average vertical and sagittal skeletal and dental patterns. Participants were evenly distributed into four age-based cohorts: group I (7-8 years), group II (9-10 years), group III (11-12 years), and group IV (13-14 years). The mean values of the ODI and APDI were calculated for each age and gender subgroup. These values were statistically analyzed and compared with the original reference norms using SPSS software. A significance threshold of <i>p</i> < 0.05 was applied.</p><p><strong>Results: </strong>Across the total sample, the mean ODI value was significantly lower (72.10° ± 3.34°), while the mean APDI value was significantly higher (82.70° ± 3.03°) compared to the original reference norms. No statistically significant differences in ODI or APDI values were observed among the four age subgroups. Gender-based analysis revealed no significant differences in APDI values between males and females. However, females exhibited significantly higher ODI values compared to males.</p><p><strong>Conclusion: </strong>The derived mean values for the ODI and APDI serve as clinically relevant benchmarks for orthodontic diagnosis and treatment planning in Arab populations and contribute to the refinement of global cephalometric standards through population-specific insights.</p><p><strong>Clinical significance: </strong>This study shows that Arab Jordanian children have different average ODI and APDI values compared to the original standards. Knowing these differences helps orthodontists make better treatment decisions that match the needs of this population. How to cite this article: Alrbata RH, Rahamneh AS. Evaluation of the Overbite Depth Indicator and Anteroposterior Dysplasia Index in a Sample of the Arab Population. J Contemp Dent Pract 2026;27(1):51-54.</p>","PeriodicalId":35792,"journal":{"name":"Journal of Contemporary Dental Practice","volume":"27 1","pages":"51-54"},"PeriodicalIF":0.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147445026","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Degradation of Printed Polymethyl Methacrylate Denture Base Materials under Simulated Oral Conditions: A Systematic Review and Meta-analysis.","authors":"Lujain In Aldosari","doi":"10.5005/jp-journals-10024-4015","DOIUrl":"https://doi.org/10.5005/jp-journals-10024-4015","url":null,"abstract":"<p><strong>Aim: </strong>To investigate the effects of artificial aging on the mechanical, physical, and chemical characteristics of polymethyl methacrylate (PMMA) denture base materials.</p><p><strong>Materials and methods: </strong>This systematic review and meta-analysis of <i>in vitro</i> studies searched five databases until December 2025. This was reported in accordance with the preferred reporting items for systematic reviews and meta-analyses 2020 (PRISMA 2020) guidelines. Selected studies evaluated heat-cured, computer-aided design/computer-aided manufacturing (CAD/CAM)-milled, and three-dimensionally (3D)-printed PMMA denture base materials. All these used artificial aging protocols. Random-effects meta-analysis was applied wherever necessary.</p><p><strong>Results: </strong>Artificial aging resulted in a significant decrease in flexural strength after aging. There were small to moderate decreases in mean values based on fabrication method and aging protocol applied. Computer-aided design/computer-aided manufacturing-milled PMMA consistently showed the highest flexural strength values before and after aging. Hardness and roughness were not affected by standard thermocycling protocols. There was some variability with coffee or staining aging protocols. Three-dimensionally printed PMMA showed higher water sorption values than milled or conventional PMMA. The levels of residual monomer released were low for all fabrication techniques.</p><p><strong>Conclusion: </strong>Artificial aging resulted in small to moderate decreases in the flexural strength of PMMA denture base materials. Computer-aided design/computer-aided manufacturing-milled PMMA showed the least change with aging. Three-dimensionally printed PMMA exhibited the greatest change.</p><p><strong>Clinical significance: </strong>Denture base material selection should account for the method of fabrication and expected aging effects, especially in patients with high denture loading. How to cite this article: Aldosari LIN. Degradation of Printed Polymethyl Methacrylate Denture Base Materials under Simulated Oral Conditions: A Systematic Review and Meta-analysis. J Contemp Dent Pract 2026;27(1):92-103.</p>","PeriodicalId":35792,"journal":{"name":"Journal of Contemporary Dental Practice","volume":"27 1","pages":"92-103"},"PeriodicalIF":0.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147445313","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effectiveness of Four Different Gutta-percha Techniques in Filling Experimental Internal Resorptive Lesions Using Stereomicroscope: An <i>In Vitro</i> Study.","authors":"Vinaya P Ingale, Abhijit B Jadhav, Seema S Patil, Aishwarya Handa, Poonam Joshi, Shivani Chavan","doi":"10.5005/jp-journals-10024-3866","DOIUrl":"https://doi.org/10.5005/jp-journals-10024-3866","url":null,"abstract":"<p><strong>Aim: </strong>The aim of this study was to evaluate and compare the effectiveness of four different gutta-percha (GP) obturation techniques cold lateral condensation (CLC), warm lateral condensation (WLC), thermoplasticized GP, and thermomechanical compaction (TMC) in achieving optimal filling of simulated internal resorptive defects.</p><p><strong>Materials and methods: </strong>Eighty extracted maxillary central incisors were divided into four groups (<i>n</i> = 20) based on the obturation techniques: CLC, WLC, thermoplasticized GP, and TMC. The samples were sectioned at the defect level, and stereomicroscopic analysis was conducted to assess the percentage of GP, sealer, and voids. Data were statistically analyzed using ANOVA and Tukey's <i>post hoc</i> test.</p><p><strong>Results: </strong>Thermoplasticized GP showed the highest GP percentage (89.4 ± 4.52%) and the least voids (2.07 ± 1.26%). Thermomechanical compaction followed with 73.71 ± 9.35% GP and 7.64 ± 6.90% voids. Warm lateral condensation exhibited 51.52 ± 10.58% GP and 29.27 ± 9.87% voids, while CLC had the lowest GP percentage (34.57 ± 14.26%) and the highest void percentage (42.34 ± 11.47%). Significant differences (<i>p</i> < 0.01) were noted among the groups.</p><p><strong>Conclusion: </strong>The thermoplasticized GP technique is the most effective for obturating internal resorptive defects, offering optimal sealing with minimal voids compared to other methods.</p><p><strong>Clinical significance: </strong>Choosing the appropriate obturation technique is critical in managing internal resorptive defects, which present unique anatomical challenges. Techniques like thermoplasticized GP ensure optimal adaptability and sealing, thereby minimizing voids and reducing the risk of treatment failure, ultimately enhancing long-term clinical outcomes. How to cite this article: Ingale VP, Jadhav AB, Patil SS, <i>et al</i>. Effectiveness of Four Different Gutta-percha Techniques in Filling Experimental Internal Resorptive Lesions Using Stereomicroscope: An <i>In Vitro</i> Study. J Contemp Dent Pract 2026;27(1):5-11.</p>","PeriodicalId":35792,"journal":{"name":"Journal of Contemporary Dental Practice","volume":"27 1","pages":"5-11"},"PeriodicalIF":0.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147445413","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Root Canal Anatomy of Saudi Subpopulation Canines: Insights from Cone-beam Computed Tomography and Ahmed-Dummer Classification.","authors":"Ahmed A Al Malwi","doi":"10.5005/jp-journals-10024-4013","DOIUrl":"https://doi.org/10.5005/jp-journals-10024-4013","url":null,"abstract":"<p><strong>Aim: </strong>Canines are important teeth in terms of esthetics and function. They are considered to represent the longest teeth in the oral cavity. This study aimed to assess the root canal anatomy of both arches' permanent canines in a Saudi subpopulation and classify them using the Ahmed and Dummer coding system.</p><p><strong>Materials and methods: </strong>In this retrospective cross-sectional study, we analyzed a total of 966 permanent canines (maxillary and mandibular) from 282 cone-beam computed tomography (CBCT) scans of patients aged 15-68 years. Data collected from CBCT included age, gender, arch, and root canal configurations according to the Ahmed and Dummer classification. We adhered to the PROUD reporting guidelines for root canal anatomy studies. Statistical analysis was conducted using SPSS software version 21. Statistical significance at <i>p</i> < 0.05 was selected.</p><p><strong>Results: </strong>This study included 163 males and 119 females. All right and left maxillary canines exhibited a 100% single-root morphology. However, mandibular canines demonstrated variations in root number, with 1.67% of cases showing double roots. Moreover, the most dominant root canal configuration in maxillary and mandibular canines was ¹C¹. Statistically significant differences were not observed between male and female subjects for any of the root canal configurations (<i>p</i> > 0.05).</p><p><strong>Conclusion: </strong>All maxillary canines demonstrated a single-root morphology, whereas a small percentage of mandibular canines displayed two root variations. The most common root canal configuration in both was ¹C¹, with variations such as ¹C^1-2-1 in both arches. ¹C^2-1 and ²C¹ B¹L¹ were found only in mandibular canines. Gender had no significant impact on root canal morphology.</p><p><strong>Clinical significance: </strong>Clinicians should anticipate rare two-rooted mandibular canines to avoid missed canals. How to cite this article: Al Malwi AA. Root Canal Anatomy of Saudi Subpopulation Canines: Insights from Cone-beam Computed Tomography and Ahmed-Dummer Classification. J Contemp Dent Pract 2026;27(1):21-26.</p>","PeriodicalId":35792,"journal":{"name":"Journal of Contemporary Dental Practice","volume":"27 1","pages":"21-26"},"PeriodicalIF":0.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147445003","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}