Indian Journal of Dental Research最新文献_第6页

Comparing 3D-Milled Wax Patterns to Hand Crafted Wax Patterns - An In-vitro Study. 比较3d磨蜡图案手工制作蜡图案-体外研究。

Indian Journal of Dental Research Pub Date : 2025-10-01 Epub Date: 2026-02-27 DOI: 10.4103/ijdr.ijdr_216_24

Nadhirah Faiz, Suresh Venugopal, Vaishnavi Rajaraman

{"title":"Comparing 3D-Milled Wax Patterns to Hand Crafted Wax Patterns - An In-vitro Study.","authors":"Nadhirah Faiz, Suresh Venugopal, Vaishnavi Rajaraman","doi":"10.4103/ijdr.ijdr_216_24","DOIUrl":"10.4103/ijdr.ijdr_216_24","url":null,"abstract":"Aim: This study aimed to evaluate and compare the precision of wax patterns fabricated using traditional handmade techniques versus advanced Computer-Aided Design/Computer-Aided Manufacturing (CAD/CAM) technology, focusing on key dimensional parameters relevant to prosthetic accuracy.Materials and methods: A total of 12 wax patterns were prepared, with six using traditional handmade methods and six using CAD/CAM technology using 3 Shape software on an extracted mandibular molar crown preparation. The nano-CT was used for the scanning the samples. The patterns were assessed for buccal thickness, buccal cement gap, occlusal thickness, occlusal cement gap, functional cusp thickness, and functional cusp cement gap using high-resolution imaging techniques. Data normality was tested and was statistically analysed.Results: CAD/CAM-fabricated wax patterns exhibited statistically significant improvements in precision for several key parameters. Specifically, the mean occlusal thickness of CAD/CAM patterns (26 ± 2 mm) was notably reduced compared to handmade patterns (72 ± 5 mm, P < 0.01). Additionally, CAD/CAM patterns demonstrated a more consistent buccal thickness (24 ± 3 mm) compared to handmade patterns (33 ± 4 mm, P < 0.01). Cement gap measurements were comparable between both methods, indicating that fit quality is maintained across fabrication techniques.Conclusion: The study demonstrated that CAD/CAM technology offers superior precision in wax pattern fabrication compared to traditional methods, with significant reductions in dimensional variability.","PeriodicalId":13311,"journal":{"name":"Indian Journal of Dental Research","volume":" ","pages":"454-459"},"PeriodicalIF":0.0,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147316670","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}

引用次数: 0

Tooth-Supported O-Ball Retained Maxillary Overdenture in a Patient Contraindicated for Dental Implants Due to Bisphosphonate Therapy. 由于双膦酸盐治疗而禁忌种植牙的患者的牙支撑o型保留上颌覆盖义齿。

Indian Journal of Dental Research Pub Date : 2025-10-01 Epub Date: 2026-02-27 DOI: 10.4103/ijdr.ijdr_353_25

Aruna Wimalarathna

引用次数: 0

Effect of Chair Position on Maximum Mouth Opening in Dentulous Patients - An Evaluative Study. 一项评估性研究：椅子位置对有牙病人最大开口的影响。

Indian Journal of Dental Research Pub Date : 2025-10-01 Epub Date: 2026-02-19 DOI: 10.4103/ijdr.ijdr_393_25

Gopi N Chander, V S Muskaan Fathima

{"title":"Effect of Chair Position on Maximum Mouth Opening in Dentulous Patients - An Evaluative Study.","authors":"Gopi N Chander, V S Muskaan Fathima","doi":"10.4103/ijdr.ijdr_393_25","DOIUrl":"10.4103/ijdr.ijdr_393_25","url":null,"abstract":"Background: Maximum mouth opening (MMO) is a significant clinical parameter in prosthodontics. Although most clinical and research evaluations are performed in the upright position, the procedures are frequently performed at reclined chair positions. Limited data exist on the influence of dental chair positions on MMO.Aim: The study aims to evaluate and compare the differences in MMO between three standardised dental chair positions: upright (90°), semi-supine (120°), and full supine (180°).Materials and methods: The study involved 60 dentulous participants aged 20-30 years, with definitive criteria. MMO was recorded using a digital vernier calliper across three calibrated positions (90°, 120°, and 180°). Measurements were made thrice in each position, and the mean value was documented. The data was statistically analysed with an established significance level ( P < 0.05).Results: MMO values displayed a gradual increase with 52.38 ± 5.65 mm (90°), 53.82 ± 5.61 mm (120°), and 54.40 ± 5.69 mm (180°). ANOVA displayed insignificance. (F (2,177) =2.03, P = 0.13). Despite a non-significant ANOVA, the Bonferroni-adjusted post hoc tests revealed significant pairwise differences ( P < 0.05) between all positions. Conclusion : Chair positions influence MMO in dentulous individuals. Fixed patient positioning is essential to ensure accuracy and reproducibility in clinical procedures and research involving MMO assessment.","PeriodicalId":13311,"journal":{"name":"Indian Journal of Dental Research","volume":" ","pages":"384-388"},"PeriodicalIF":0.0,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146219496","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}

引用次数: 0

Clinical Characteristics and Diagnostic Features of Cracked Molar Teeth - An Evaluative Study. 磨牙裂牙的临床特征及诊断特征的评价研究。

Indian Journal of Dental Research Pub Date : 2025-10-01 Epub Date: 2026-02-21 DOI: 10.4103/ijdr.ijdr_656_25

V Ashokkumar, Periasamy Ravishankar

{"title":"Clinical Characteristics and Diagnostic Features of Cracked Molar Teeth - An Evaluative Study.","authors":"V Ashokkumar, Periasamy Ravishankar","doi":"10.4103/ijdr.ijdr_656_25","DOIUrl":"10.4103/ijdr.ijdr_656_25","url":null,"abstract":"Aim: The purpose of this study was to analyse the diagnostic features and clinical characteristics of cracked molar teeth.Materials and methods: Patients diagnosed with cracked molar teeth were selected for this study. Clinical signs and symptoms, age, gender, and radiographic findings were recorded. Data collected included tooth number, presence/absence of restoration, direction and location of the crack, pulp vitality testing (cold test/electronic pulp testing), transillumination findings, methylene blue dye staining results, bite test response, percussion and palpation findings, presence of wear facets, presence or absence of periodontal pocket depth, and the final pulpal and periapical diagnoses.Results: Out of 220 patients, 33 patients with cracked teeth were diagnosed. Cracked teeth were most frequently observed in patients aged between 30 and 40 years. A sensitive response to the bite test was observed in 98% of cases. Transillumination and methylene blue dye were effective in detecting cracks in 99% of cases. Mandibular first molar (55%) was most commonly affected, followed by mandibular second molar (36%) and maxillary first molar (9%). Most cracks (67%) were found in intact teeth, while 33% were associated with restored teeth, which was significant ( P = 0.021). Cracks were not significantly associated with deep periodontal pockets (18%) ( P = 0.026). The presence of wear facets was not significantly higher in cracked teeth. ( P = 0.602). Fifteen per cent of cracked teeth showed reversible pulpitis, 45% irreversible pulpitis, and 39% pulpal necrosis.Conclusion: A combined approach using history, clinical signs and symptoms, and tests, such as bite test, transillumination, and staining with methylene blue dye, is recommended for detecting cracks in teeth. Most cracked teeth showed pulpal diagnosis of irreversible pulpitis and pulpal necrosis, for which root canal treatment is recommended.","PeriodicalId":13311,"journal":{"name":"Indian Journal of Dental Research","volume":" ","pages":"389-392"},"PeriodicalIF":0.0,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147270806","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}

引用次数: 0

Hemangioendothelioma - A Case Report. 血管内皮瘤1例报告。

Indian Journal of Dental Research Pub Date : 2025-10-01 Epub Date: 2026-02-16 DOI: 10.4103/ijdr.ijdr_471_24

Preethi Murali, B Kavitha, Pradeep Devadoss, R S Neelakandan

引用次数: 0

CBCT Guided Endodontics: Accuracy Evaluation of Access Cavity Preparation Combined with Optical Surface Scans - An In vitro Study. CBCT引导的牙髓学：通道腔预备结合光学表面扫描的准确性评估-一项体外研究。

Indian Journal of Dental Research Pub Date : 2025-10-01 Epub Date: 2026-02-14 DOI: 10.4103/ijdr.ijdr_380_25

Vigneshwari Subramaniam Kalaiyarasu, Manje Gowda, K B Jayalakshmi, J Poorani Nagalakshmi

{"title":"CBCT Guided Endodontics: Accuracy Evaluation of Access Cavity Preparation Combined with Optical Surface Scans - An In vitro Study.","authors":"Vigneshwari Subramaniam Kalaiyarasu, Manje Gowda, K B Jayalakshmi, J Poorani Nagalakshmi","doi":"10.4103/ijdr.ijdr_380_25","DOIUrl":"10.4103/ijdr.ijdr_380_25","url":null,"abstract":"Objective: To evaluate the accuracy of access cavity prepared through guide rail that was planned and produced by combining the optical surface scans and Cone Beam Computed Tomography (CBCT) images.Methods: Forty-two extracted single rooted mandibular premolar teeth were selected. The teeth were mounted in three acrylic models, containing 14 in each model. Preoperative CBCT scans and three dimensional (3D) optical surface scans were taken for the models. A virtual drill path was planned in dentine with a help of software and access cavities were prepared according to that. Difference in mean distance and angular deviation were measured and calculated.Results: Root canal access cavities prepared through the guide rail showed the mean angle difference of 1.69 ± 0.41° and the difference in distance between drill path and target point in the access cavity that was planned and prepared was found to be 0.74 ± 0.25 mm. Compared to the planned access cavities, the root canal access cavities produced using the guide rail had substantially smaller differences in both distance and angle deviations.Conclusion: With the emergence of advancements like optical scans and CBCT Guided endodontics could be used as an alternative method to negotiate root canals in pulp obliterated teeth.","PeriodicalId":13311,"journal":{"name":"Indian Journal of Dental Research","volume":" ","pages":"460-464"},"PeriodicalIF":0.0,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146179398","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}

引用次数: 0

Efficacy of Laser Therapy versus Conventional Periodontal Treatment in Diabetic Patients with Periodontitis: A Systematic Review and Meta-analysis of Randomized Controlled Trials. 激光治疗与常规牙周治疗对糖尿病牙周炎患者的疗效：随机对照试验的系统评价和荟萃分析。

Indian Journal of Dental Research Pub Date : 2025-10-01 Epub Date: 2026-03-20 DOI: 10.4103/ijdr.ijdr_744_25

Rashmi Hegde, Dharmarajan Gopalakrishnan, Sangamithra Sidharthan, Vineet Vinay

{"title":"Efficacy of Laser Therapy versus Conventional Periodontal Treatment in Diabetic Patients with Periodontitis: A Systematic Review and Meta-analysis of Randomized Controlled Trials.","authors":"Rashmi Hegde, Dharmarajan Gopalakrishnan, Sangamithra Sidharthan, Vineet Vinay","doi":"10.4103/ijdr.ijdr_744_25","DOIUrl":"10.4103/ijdr.ijdr_744_25","url":null,"abstract":"Background: Chronic periodontitis affects 10-15% of adults, worsened by diabetes. Effective therapy reduces inflammation and bacteria, with laser therapy emerging as a promising non-surgical adjunct or standalone option. This study systematically reviews clinical papers on various lasers (low-level laser therapy [LLLT], diode, Er:YAG/Er, Cr:YSGG, Nd:YAG) as adjuncts in periodontal flap microsurgery for patients with diabetes mellitus (type 1 or type 2), assessing their effects on periodontal health, glycaemic control, and safety.Methodology: The study protocol was prospectively registered on PROSPERO. A search strategy was conducted across multiple databases; 13 studies were included in this systematic review. Risk of bias was assessed using the Cochrane Risk of bias tool 2.0 (RoB 2), and RevMan 5.4 and STATA 18 software were used for quantitative assessment of the selected studies. Results : Out of the 13 studies selected, only one study showed a high risk of bias, while the other 12 showed moderate risk. In the quantitative assessment, I 2 = 77% for Plaque Index (PI) values, I 2 = 83% for Gingival Index (GI), I 2 = 84% for bleeding on probing (BOP), I 2 = 86% for clinical attachment level (CAL), and I 2 = 92% for pocket probing depth (PPD).Conclusion: Laser adjuncts, particularly Er:YAG and LLLT/diode, enhance periodontal treatment for type 2 diabetes mellitus (T2DM) patients, improving clinical outcomes and inflammation. Nd:YAG lasers aid healing and inflammation regulation, but benefits are often limited, and long-term effects are unclear. Comprehensive, large-scale trials are needed to shape clinical guidelines. Clinicians should consider laser adjuncts for complex cases, balancing benefits with costs and patient needs.","PeriodicalId":13311,"journal":{"name":"Indian Journal of Dental Research","volume":" ","pages":"479-486"},"PeriodicalIF":0.0,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147490920","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}

引用次数: 0

Labially Opening Abutment Channels with Digital Implant Planning, Utilizing Screw and Cement Retained Prosthesis - A Case Report. 利用螺钉和骨水泥保留假体的数字种植计划在唇上打开基台通道1例报告。

Indian Journal of Dental Research Pub Date : 2025-10-01 Epub Date: 2026-03-23 DOI: 10.4103/ijdr.ijdr_741_24

Siva P Dhanaraj, Kayathri Anbarasan, Narmadha Dominic, Kirthiga D Moorthy, A Sriganesh

引用次数: 0

Association of Serum Estrodiol Levels with Oral Lichen Planus in Postmenopausal Women - A Comparative Study. 血清雌激素二醇水平与绝经后妇女口腔扁平苔藓的关系——一项比较研究。

Indian Journal of Dental Research Pub Date : 2025-07-01 Epub Date: 2025-12-05 DOI: 10.4103/ijdr.ijdr_782_23

Kallanchira Devaraj Divya, Anita Balan, M G Joseraj, Nileena Raghavendra Kumar

{"title":"Association of Serum Estrodiol Levels with Oral Lichen Planus in Postmenopausal Women - A Comparative Study.","authors":"Kallanchira Devaraj Divya, Anita Balan, M G Joseraj, Nileena Raghavendra Kumar","doi":"10.4103/ijdr.ijdr_782_23","DOIUrl":"10.4103/ijdr.ijdr_782_23","url":null,"abstract":"Background: Oral lichen planus (OLP) is one of the most prevalent mucocutaneous immunological disorders affecting females. The aim of the study was to determine whether there is an association of serum estradiol levels with the occurrence of OLP in postmenopausal women and also to correlate the estradiol levels with the clinical types of OLP.Materials and methods: Cross-sectional study on patients diagnosed clinically and histopathologically as OLP ( n = 50) and the controls consisted of 50 postmenopausal women randomly selected with clinically normal oral mucosa. The serum estradiol was estimated for both groups. Student's t -test was used to compare the quantitative variables.Results: Serum estradiol of OLP patients was 13.45 ± 7.96, remarkably less than the controls, 19.49 ± 6.59 ( P ≤ 0.01). Also, estradiol was seen to decline with the severity of OLP with reticular type (15.5 pg/mL) than erosive (11.1 pg/mL) and bullous (12 pg/mL). Both the patients and controls showed a decline in levels of estradiol with the increase in the period of last menstruation. Increased prevalence of OLP in patients who underwent hysterectomy and oophorectomy than in the controls ( P < 0.01).Conclusion: Serum estradiol in postmenopausal patients with OLP declined with increased severity of OLP type.","PeriodicalId":13311,"journal":{"name":"Indian Journal of Dental Research","volume":" ","pages":"321-324"},"PeriodicalIF":0.0,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145687242","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}

引用次数: 0

Keratin Scaffolds for Enamel Regeneration - Promise at the Frontier of Non-Invasive Dentistry. 用于牙釉质再生的角蛋白支架-在非侵入性牙科前沿的前景。

Indian Journal of Dental Research Pub Date : 2025-07-01 Epub Date: 2026-01-02 DOI: 10.4103/ijdr.ijdr_863_25

S M Balaji

引用次数: 0