Frontiers in Dentistry最新文献

A Comparison between the Tunnel Technique with Autogenous Grafts and Coronally Advanced Flap for Root Coverage of Multiple Gingival Recessions: A Randomized Clinical Trial. 隧道技术与自体移植物及冠状推进皮瓣治疗多发性牙龈衰退根覆盖的比较：一项随机临床试验。

Frontiers in Dentistry Pub Date : 2025-06-01 eCollection Date: 2025-01-01 DOI: 10.18502/fid.v22i21.18815

Jaber Yaghini, Mehrnegar Mahmoudzadeh, Zohreh Afshari, Amir Farmohammadi, Ahmad Mogharehabed

{"title":"A Comparison between the Tunnel Technique with Autogenous Grafts and Coronally Advanced Flap for Root Coverage of Multiple Gingival Recessions: A Randomized Clinical Trial.","authors":"Jaber Yaghini, Mehrnegar Mahmoudzadeh, Zohreh Afshari, Amir Farmohammadi, Ahmad Mogharehabed","doi":"10.18502/fid.v22i21.18815","DOIUrl":"10.18502/fid.v22i21.18815","url":null,"abstract":"Objectives: The purpose of this study was to compare the clinical performance of coronally advanced flap (CAF) with connective tissue graft (CTG) and vestibular incision subperiosteal tunnel access (VISTA). Materials and Methods: The statistical population of this randomized clinical trial consisted of 24 healthy non-smokers with Miller Class I or II gingival recession (GR) defects, equally divided into two groups of 12 to receive either a CAF or the VISTA technique. Clinical parameters including the clinical attachment level (CAL), gingival biotype, pocket probing depth (PPD), recession height (RH), recession width (RW), root coverage (RC), and keratinized tissue width (KTW) were measured and compared between the two groups using ANCOVA, Fisher's exact test, independent samples t-test, Mann-Whitney U test, and repeated-measures ANOVA (alpha=0.05). Results: The CAF group showed a significantly higher RC percentage (97.22%±9.62%) than the VISTA group (77.22%±24.28%%). Both techniques exhibited similar performance in terms of reducing the PPD and increasing the KTW and gingival attachment. However, the CAF group experienced a significantly greater reduction in CAL, RW, and RH than the VISTA group (P<0.05). Conclusion: The VISTA and CAF groups showed a complete root coverage (CRC) percentage of 33.3% and 91.7%, respectively, indicating higher effectiveness of CAF than VISTA.","PeriodicalId":12445,"journal":{"name":"Frontiers in Dentistry","volume":"22 ","pages":"21"},"PeriodicalIF":0.0,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12236381/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144590847","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Evaluation of the Determinants of Dental Implant. 牙种植体影响因素的评价。

Frontiers in Dentistry Pub Date : 2025-05-20 eCollection Date: 2025-01-01 DOI: 10.18502/fid.v22i20.18761

Fateme Mohajeri Tehrani, Seyed Mohammad Reza Hakimaneh, Ayat Ahmadi, Sayed Shojaedin Shayegh

{"title":"Evaluation of the Determinants of Dental Implant.","authors":"Fateme Mohajeri Tehrani, Seyed Mohammad Reza Hakimaneh, Ayat Ahmadi, Sayed Shojaedin Shayegh","doi":"10.18502/fid.v22i20.18761","DOIUrl":"10.18502/fid.v22i20.18761","url":null,"abstract":"Considering the increasing use of dental implants, their failure is a serious challenge encountered by dentists. An accurate prediction of the rate of failure based on the underlying factors allows patients to accept the risk of failure. This study assessed the failure rate and time of implant treatment in patients referred to a specialized clinic. This study was conducted on implant cases in Shahid Montazeri Clinic in Tehran, Iran, from March 2008 to March 2017. A total of 544 patients including 248 patients in the failure group (case) and 296 patients in the treatment success group (control) were evaluated. Data were analyzed using the univariate and multivariable logistic regression. Males, older patients, posterior implant placement site, and shorter height and/or diameter of dental implants increased the risk of failure (P<0.05). The implant brand was also an effective factor in the failure rate (P<0.001). Implants with smaller length or diameter were more prone to failure. Accordingly, in selecting a dental implant, attention should be paid to the patient's age, sex, and location of implant to reduce the failure rate by increasing the diameter and length of implant.","PeriodicalId":12445,"journal":{"name":"Frontiers in Dentistry","volume":"22 ","pages":"20"},"PeriodicalIF":0.0,"publicationDate":"2025-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12236373/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144590851","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

In Vitro Antimicrobial Effects of Endoseal MTA and AH Plus Sealers on Enterococcus Faecalis and Candida Albicans Mature Biofilms. 内膜MTA和AH +封口剂对粪肠球菌和白色念珠菌成熟生物膜的体外抗菌作用。

Frontiers in Dentistry Pub Date : 2025-05-19 eCollection Date: 2025-01-01 DOI: 10.18502/fid.v22i19.18760

Elham Khoshbin, Forough Nikzad, Mohammad Reza Arabestani, Maryam Farhdian, Hamed Karkehabadi

{"title":"In Vitro Antimicrobial Effects of Endoseal MTA and AH Plus Sealers on Enterococcus Faecalis and Candida Albicans Mature Biofilms.","authors":"Elham Khoshbin, Forough Nikzad, Mohammad Reza Arabestani, Maryam Farhdian, Hamed Karkehabadi","doi":"10.18502/fid.v22i19.18760","DOIUrl":"10.18502/fid.v22i19.18760","url":null,"abstract":"Objectives: This study compared the antimicrobial effects of Endoseal MTA and AH Plus sealers on Enterococcus faecalis (E. faecalis) and Candida albicans (C. albicans) mature biofilms on dentin blocks. Materials and Methods: In this in vitro study, the root canals of 207 dentin blocks sectioned from the roots of extracted teeth were inoculated with E. faecalis and C. albicans, and incubated for 3 weeks. The specimens were evaluated in 12 groups (n=17) for random root canal filling with AH Plus, Endoseal MTA, or no sealer, and assessment after 24 hours and 2 weeks. Dentin chips were cultured on blood agar, and the colonies were counted. One random specimen from each group was assessed under a scanning electron microscope (SEM). Data were analyzed using the Kruskal-Wallis and Mann-Whitney tests with Bonferroni adjustment at 0.05 level of significance. Results: At 24 hours, Endoseal MTA significantly decreased the E. faecalis count compared with the positive control (P<0.008). At 2 weeks, the colony count of both microorganisms was significantly lower in the AH Plus group compared with the control group (P<0.008). The C. albicans colony count in the Endoseal MTA group was significantly lower than that in the control group at 2 weeks (P<0.008). AH Plus caused significantly greater reduction in C. albicans colony count at 2 weeks compared with Endoseal MTA (P<0.008). Conclusion: AH Plus showed a higher antimicrobial activity over time against both E. faecalis and C. albicans. Endoseal MTA only showed short-term antibacterial effect.","PeriodicalId":12445,"journal":{"name":"Frontiers in Dentistry","volume":"22 ","pages":"19"},"PeriodicalIF":0.0,"publicationDate":"2025-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12236376/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144590852","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Comparative Effects of Naproxen, Diclofenac, and Piroxicam on Temporomandibular Disorders: A Clinical Trial. 萘普生、双氯芬酸和吡罗西康治疗颞下颌疾病的比较疗效：一项临床试验

Frontiers in Dentistry Pub Date : 2025-05-05 eCollection Date: 2025-01-01 DOI: 10.18502/fid.v22i18.18689

Ali Peimani, Shirin Abedini, Zahra Jahanshahi Afshar, Mohammadali Heidari, Zohreh Nouri, Mahmood Sheikh Fathollahi

{"title":"Comparative Effects of Naproxen, Diclofenac, and Piroxicam on Temporomandibular Disorders: A Clinical Trial.","authors":"Ali Peimani, Shirin Abedini, Zahra Jahanshahi Afshar, Mohammadali Heidari, Zohreh Nouri, Mahmood Sheikh Fathollahi","doi":"10.18502/fid.v22i18.18689","DOIUrl":"10.18502/fid.v22i18.18689","url":null,"abstract":"Objectives: The prevalence of temporomandibular disorders (TMDs) is increasing in adults, and they are associated with symptoms such as pain and dysfunction. Non-surgical treatment, which may include pharmacotherapy, laser therapy, and physiotherapy, is the first step in treatment of TMDs. This study aimed to compare the effects of naproxen, diclofenac, and piroxicam on TMDs. Materials and Methods: This clinical trial was conducted on 104 patients who were randomly assigned to four groups (n=26) to receive either 500mg naproxen tablets, 50mg diclofenac tablets, 10mg piroxicam capsules, or the placebo. The patients were evaluated for pain, clicking, tenderness, and maximum mouth opening (MMO) in five stages, i.e., before starting the treatment and 1 week, 3 weeks, 5 weeks, and 6 weeks after starting the treatment. Data were analyzed by one-way repeated measures ANOVA with one repeated and one between-subject factor, Fisher's exact test, and Chi-square test (alpha=0.05). Results: Tenderness and clicking decreased with time in all groups (P≤0.05). The mean pain intensity and tenderness were significantly lower in the naproxen group than the other groups (P<0.05). Conclusion: Naproxen tablets can reduce pain and tenderness in TMD patients more than diclofenac tablets, piroxicam capsules, and the placebo.","PeriodicalId":12445,"journal":{"name":"Frontiers in Dentistry","volume":"22 ","pages":"18"},"PeriodicalIF":0.0,"publicationDate":"2025-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12236382/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144590848","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effects of a Universal Adhesive System and the Snow-Plow Technique on Microleakage of Class II Composite Restorations in Primary Molars. 通用粘接系统与雪犁技术对初级磨牙II类复合修复体微渗漏的影响。

Frontiers in Dentistry Pub Date : 2025-05-01 eCollection Date: 2025-01-01 DOI: 10.18502/fid.v22i17.18688

Mahshid Gifani, Mahsa Talafi Noghani, Alireza Sarraf Shirazi, Alireza Boruziniat

{"title":"Effects of a Universal Adhesive System and the Snow-Plow Technique on Microleakage of Class II Composite Restorations in Primary Molars.","authors":"Mahshid Gifani, Mahsa Talafi Noghani, Alireza Sarraf Shirazi, Alireza Boruziniat","doi":"10.18502/fid.v22i17.18688","DOIUrl":"10.18502/fid.v22i17.18688","url":null,"abstract":"Objectives: This study evaluated the effects of using a universal adhesive and application of a flowable composite by the snow-plow technique on microleakage of Class II composite restorations in primary molars. Materials and Methods: In this in vitro study, Class II cavities were prepared with their gingival margin at the cementoenamel junction in the proximal surfaces of 90 freshly extracted primary molars. The teeth were then assigned to 3 groups (n=30) for the application of a universal adhesive (Single Bond Universal) in total-etch and self-etch modes and a conventional etch-and-rinse adhesive (Single Bond 2). Each group was divided into 3 subgroups (n=10) for restoration without a flowable liner (control), application of a precured flowable liner, and using a flowable composite as liner by the snow-plow technique. After 1000 thermal cycles, the gingival margin microleakage was evaluated using the fluid filtration technique. Data were analyzed by two-way ANOVA and Tukey's test (alpha=0.05). Results: Type of adhesive, unlike liner application (P=0.579), had a significant effect on microleakage (P=0.01). Application of universal adhesive (whether in self-etch or total-etch mode) resulted in less microleakage than the conventional etch-and-rinse adhesive. There was no statistically significant difference between the two application modes of the universal adhesive (P>0.05). Conclusion: Application of Single Bond universal adhesive for composite restoration of primary molars may improve the marginal seal and decrease microleakage.","PeriodicalId":12445,"journal":{"name":"Frontiers in Dentistry","volume":"22 ","pages":"17"},"PeriodicalIF":0.0,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12236379/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144590850","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Color Change Stability Using Different Bleaching Gels and Light Sources: An in Vitro Study. 不同漂白凝胶和光源的变色稳定性：体外研究。

Frontiers in Dentistry Pub Date : 2025-04-22 eCollection Date: 2025-01-01 DOI: 10.18502/fid.v22i16.18545

Abolfazl Bazari Jamkhaneh, Zohreh Moradi, Sina Sadeghabadi, Pooya Soltanzadeh, Nasim Chiniforush

{"title":"Color Change Stability Using Different Bleaching Gels and Light Sources: An in Vitro Study.","authors":"Abolfazl Bazari Jamkhaneh, Zohreh Moradi, Sina Sadeghabadi, Pooya Soltanzadeh, Nasim Chiniforush","doi":"10.18502/fid.v22i16.18545","DOIUrl":"10.18502/fid.v22i16.18545","url":null,"abstract":"Objectives: The aim of this study was to assess the color change (∆E) of teeth following the use of several bleaching protocols with power bleaching. Materials and Methods: This in vitro study evaluated 50 sound incisors and premolars. After cleaning, the teeth were immersed in a 2g/100mL tea solution for 6 days. The samples were randomly divided into 5 bleaching groups: Snow L [containing 40% hydrogen peroxide (HP) and 20% carbamide peroxide] with 980nm diode laser, White Smile (containing 32% HP) with LED (Monitex), Boost (containing 40% HP) with 980nm diode laser, Boost (containing 40% HP) with LED (Monitex), and Boost without activation. Color parameters were measured before and after staining, immediately and 1 week after bleaching by a spectrophotometer, and their ∆E was calculated and compared by one-way ANOVA followed by the Tukey's test. Results: All bleaching protocols improved the color parameters. The ∆E in each group was significant after bleaching compared to before bleaching in the cervical (P<0.001), middle (P<0.001) and incisal (P<0.001) thirds. The ∆E was significant at 1 week compared to before bleaching (P=0.002 for the cervical, P<0.001 for the middle, and P<0.001 for the incisal third, respectively), immediately after bleaching compared with after staining (all Ps<0.001), and also at 1 week compared with after staining (all Ps<0.001). Conclusion: Within the study limitations, all power bleaching protocols caused color change of the teeth. The efficacy of Boost (conventional bleaching), Boost plus LED, and White Smile was better than Snow L regarding color change of teeth.","PeriodicalId":12445,"journal":{"name":"Frontiers in Dentistry","volume":"22 ","pages":"16"},"PeriodicalIF":0.0,"publicationDate":"2025-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12276775/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144674253","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Concurrent Occurrence of Obsessive-Compulsive Disorder and Myofascial Pain Dysfunction Syndrome: A Case Series. 同时发生的强迫症和肌筋膜疼痛功能障碍综合征：一个病例系列。

Frontiers in Dentistry Pub Date : 2025-04-15 eCollection Date: 2025-01-01 DOI: 10.18502/fid.v22i15.18471

Sara Pourshahidi, Hooman Ebrahimi, Younes Ghoreyshi, Nafiseh Sheykhbahaei

引用次数: 0

Sex Estimation Based on Tooth Measurements on Panoramic Radiographs with Classical and Machine-Learning Classifiers. 基于经典分类器和机器学习分类器的全景x线照片牙齿测量性别估计。

Frontiers in Dentistry Pub Date : 2025-04-12 eCollection Date: 2025-01-01 DOI: 10.18502/fid.v22i14.18470

Samaneh Talebi, Hossien Fallahzadeh, Sara Jambarsang, Fatemeh Ezoddini Ardakani

{"title":"Sex Estimation Based on Tooth Measurements on Panoramic Radiographs with Classical and Machine-Learning Classifiers.","authors":"Samaneh Talebi, Hossien Fallahzadeh, Sara Jambarsang, Fatemeh Ezoddini Ardakani","doi":"10.18502/fid.v22i14.18470","DOIUrl":"10.18502/fid.v22i14.18470","url":null,"abstract":"Objectives: This study assessed sex estimation of Iranians according to maxillary left first molar measurements made on panoramic radiographs using classical and machine-learning classifiers. Materials and Methods: In this cross-sectional study, tooth length- and width-related variables were calculated for maxillary left first molars on 131 panoramic radiographs (65 males, 66 females; age range of 18-30 years). A subsample of the radiographs was selected and reevaluated by two examiners after 1 month. The intra-class correlation coefficient (ICC) was calculated to assess reliability. The regularized discriminant analysis (RDA), support vector machine (SVM), and cascade-forward and feed-forward neural network models were used for sex estimation. Comparisons were made with the Mann-Whitney and t tests. Results: The intra-observer reliability was 0.9. SVM had the best performance on the test data in both classification schemes. The crown length at the cementoenamel junction (CEJL) and total crown length (CL) in the classification scheme I (sex estimation based on length and width variables), and CEJL/root length (RL), cementoenamel junction width (CEJW)/CEJL, and RL/total tooth length (TTL) in the classification scheme II (sex estimation based on the ratio of variables) were important variables for sex estimation determined by the SVM model. The CEJL had the highest discriminative potential with an area under the curve (AUC) of 78.8. The ratio of variables did not substantially improve sex estimation compared with single variables. Conclusion: CEJL is a reliable measure for sex estimation in Iranians with values higher than 6.25 indicating the male sex and other values indicating the female sex.","PeriodicalId":12445,"journal":{"name":"Frontiers in Dentistry","volume":"22 ","pages":"14"},"PeriodicalIF":0.0,"publicationDate":"2025-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12236378/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144590865","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Oral Health Literacy: Decision-Making and Reading Comprehension Skills as the Determinants of Self-Reported Oral Health. 口腔健康素养：决策能力和阅读理解能力是自我报告口腔健康的决定因素。

Frontiers in Dentistry Pub Date : 2025-04-10 eCollection Date: 2025-01-01 DOI: 10.18502/fid.v22i13.18469

Negar Ebrahimi, Katayoun Sargeran, Reza Yazdani

{"title":"Oral Health Literacy: Decision-Making and Reading Comprehension Skills as the Determinants of Self-Reported Oral Health.","authors":"Negar Ebrahimi, Katayoun Sargeran, Reza Yazdani","doi":"10.18502/fid.v22i13.18469","DOIUrl":"10.18502/fid.v22i13.18469","url":null,"abstract":"Objectives: Oral health literacy (OHL) is a concept far beyond reading and including other skills such as numeracy skills, listening, and decision-making. Self-reported oral health(SROH) is a reliable and cost-effective measure of dental and periodontal conditions. The current study aimed to evaluate the association between various aspects of OHL and SROH. Materials and Methods: This cross-sectional study was conducted among adults visiting a dental school. One interviewer asked each individual \"How would you describe your oral health at present?\" to measure SROH. Two response categories were \"good\" and \"poor\". OHL-AQ (Oral Health Literacy Adult Questionnaire) was used to measure different aspects of OHL (Reading comprehension and knowledge, listening, numeracy and communication, and decision-making skills). The total scores ranged from 0 and 17. To analyze the data binary logistic regression and chi-square tests were performed. (P=0.05) Results: Totally 253 adults participated. Most participants (65.21%) were females. The numbers of subjects with good and poor SROH were 127(50.20%) and 126(49.80%) respectively. The mean age of the participants was 37.75±10.69 years and ranged from 18 to 65 years. The overall mean OHL score was 11.74±3.12. Out of the components of OHL in OHL-AQ, reading comprehension and knowledge skills (p=0.032), and decision-making skills (p=0.013) had a significant positive correlation with good SROH. In contrast, listening (p=0.955) and numeracy skills (p=0.349) did not exhibit a similar association. Conclusion: OHL level, particularly decision-making, reading comprehension, and knowledge skills, is associated with SROH.","PeriodicalId":12445,"journal":{"name":"Frontiers in Dentistry","volume":"22 ","pages":"13"},"PeriodicalIF":0.0,"publicationDate":"2025-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12236375/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144590864","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effect of Er:YAG Laser Irradiation with Various Power Levels on Shear Bond Strength of Repair to Aged Nanofilled Composite Resin. 不同功率水平Er:YAG激光辐照对纳米复合树脂老化修复剪切结合强度的影响

Frontiers in Dentistry Pub Date : 2025-03-15 eCollection Date: 2025-01-01 DOI: 10.18502/fid.v22i12.18168

Yousef Jahandideh, Reza Tayefeh-Davalloo, Samiye Rahimabadi, Mehran Falahchai, Zahra Feizkhah

{"title":"Effect of Er:YAG Laser Irradiation with Various Power Levels on Shear Bond Strength of Repair to Aged Nanofilled Composite Resin.","authors":"Yousef Jahandideh, Reza Tayefeh-Davalloo, Samiye Rahimabadi, Mehran Falahchai, Zahra Feizkhah","doi":"10.18502/fid.v22i12.18168","DOIUrl":"10.18502/fid.v22i12.18168","url":null,"abstract":"Objectives: The increasing applications of composite resins and the need for correction of defects developed over time call for strategies to increase the bond strength of new repair composite resin to old (aged) composite resin. Thus, this study aimed to assess the effect of erbium-doped yttrium aluminum garnet (Er:YAG) laser irradiation with various power levels on shear bond strength (SBS) of repair to aged nanofilled composite resin. Materials and Methods: Thermocycled disc-shaped (4.0×7.0mm) nanofilled composite resin specimens were randomly assigned to 4 groups (n=15): bur abrasion and 35% phosphoric acid (control group), irradiation of 1 W Er:YAG laser, irradiation of 2W Er:YAG laser, and irradiation of 4.5W Er:YAG laser. The SBS was measured after the application of repair composite and thermocycling. Specimens were observed under a stereomicroscope to determine the mode of failure. Atomic force microscopy (AFM) was used to assess the surface topography. Data were analyzed with one-way ANOVA, Games-Howell, and Fisher's exact tests (α=0.05). Results: The mean SBS in the 1W and 2W laser groups was significantly lower than that in the 4.5W laser and control groups (P<0.05). The difference in SBS of the 1W and 2W laser (P=0.999), and the 4.5W laser and control (P=0.999) groups was not significant. Conclusion: Er:YAG laser irradiation with 4.5W power yielded a SBS comparable to that of the control group and significantly higher than that of the 1W and 2W laser groups.","PeriodicalId":12445,"journal":{"name":"Frontiers in Dentistry","volume":"22 ","pages":"12"},"PeriodicalIF":0.0,"publicationDate":"2025-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12086464/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144101686","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0