Journal of Conservative Dentistry and Endodontics最新文献_第5页

Outcome of novel pulp capping modalities after full pulpotomy in teeth diagnosed with irreversible pulpitis: A prospective randomized clinical trial 对确诊为不可逆牙髓炎的牙齿进行全牙髓切除术后，采用新型牙髓封闭方式的效果：前瞻性随机临床试验

Journal of Conservative Dentistry and Endodontics Pub Date : 2024-02-01 DOI: 10.4103/jcde.jcde_257_23

Sneh Mishra, S. Taneja, V. Bhalla, Akshay Rathore

{"title":"Outcome of novel pulp capping modalities after full pulpotomy in teeth diagnosed with irreversible pulpitis: A prospective randomized clinical trial","authors":"Sneh Mishra, S. Taneja, V. Bhalla, Akshay Rathore","doi":"10.4103/jcde.jcde_257_23","DOIUrl":"https://doi.org/10.4103/jcde.jcde_257_23","url":null,"abstract":"\u0000 \u0000 \u0000 The study aimed to compare and evaluate the effect of biodentine (BD) alone, BD along with Lyophilised freeze dried platelet rich concentrate (LPC + BD), and BD along with low-level laser therapy (BD + LLLT) after pulpotomy in mature permanent molars with irreversible pulpitis.\u0000 \u0000 \u0000 \u0000 The study was designed as a randomized, pragmatic, parallel, double-blinded clinical trial registered under the Clinical Trial Registry–India (CTRI/2020/02/023245). 120 permanent molars fulfilling the inclusion and exclusion criteria with symptoms of irreversible pulpitis were randomized after performing pulpotomy into three pulp capping groups: Group 1, BD; Group 2, lyophilized freeze-dried platelet-rich concentrate + BD (LPC + BD); and Group 3, Low level laser therapy + BD Group 3, LLLT + BD. The intergroup comparison was done using one-way analysis of variance followed by the Bonferroni test. The level of significance and confidence interval were 5% and 95%, respectively. Interobserver reliability was measured using Cohen’s kappa analysis.\u0000 \u0000 \u0000 \u0000 At 1 week, there was a significant difference (P < 0.005) observed in the mean postoperative pain levels between the three groups with Group 1 (BD) exhibiting the highest postoperative pain followed by Group 2 (LPC + BD) and least pain was exhibited by Group 3 (LLLT + BD). A similar pattern was observed regarding the analgesic intake with maximum frequency in Group 1 (BD) and least with Group 3 (LLLT + BD). No significant difference in success rates was reported among the groups.\u0000 \u0000 \u0000 \u0000 Pulpotomy as a treatment option for mandibular molars with irreversible pulpitis has an acceptable clinical success rate; however, long-term overall success rate remains questionable. The outcomes of incorporating adjunctive modalities with BD are remarkable and show tremendous potential for continued development and research.\u0000","PeriodicalId":516572,"journal":{"name":"Journal of Conservative Dentistry and Endodontics","volume":"15 s1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139817797","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

Revolutionizing endodontics: Advancements in nickel–titanium instrument surfaces 牙髓病学的革命：镍钛器械表面的进步

Journal of Conservative Dentistry and Endodontics Pub Date : 2024-02-01 DOI: 10.4103/jcde.jcde_248_23

Paridhi Agrawal, M. Chandak, P. Nikhade, Aditya Satyawansingh Patel, Jay Bhopatkar

{"title":"Revolutionizing endodontics: Advancements in nickel–titanium instrument surfaces","authors":"Paridhi Agrawal, M. Chandak, P. Nikhade, Aditya Satyawansingh Patel, Jay Bhopatkar","doi":"10.4103/jcde.jcde_248_23","DOIUrl":"https://doi.org/10.4103/jcde.jcde_248_23","url":null,"abstract":"\u0000 Nickel–titanium (NiTi) instruments have become the backbone of endodontics due to their exceptional properties, superelasticity, and shape memory. However, challenges such as unexpected breakage, poor cutting efficiency, and corrosion have prompted researchers to explore innovative surface modifications to enhance their performance. This comprehensive review discusses the latest advancements in NiTi metallurgy and their impact on rotary NiTi file systems. Various surface treatment techniques, including ion implantation, cryogenic treatment (CT), thermal nitridation, electropolishing, and physical or chemical vapor deposition, have been investigated to minimize defects, boost surface hardness, and improve cyclic fatigue resistance. Ion implantation has shown promise by increasing wear resistance and cutting efficiency through nitrogen ion incorporation. Thermal nitridation has successfully formed titanium nitride (TiN) coatings, resulting in improved corrosion resistance and cutting efficiency. CT has demonstrated increased cutting efficiency and overall strength by creating a martensite transformation and finer carbide particles. Electropolishing has yielded mixed results, providing smoother surfaces but varying impacts on fatigue resistance. Physical or chemical vapor deposition has proven effective in forming TiN coatings, enhancing hardness and wear resistance. Furthermore, the concept of surface functionalization with silver ions for antibacterial properties has been explored. These advancements present an exciting future for endodontic procedures, offering the potential for enhanced NiTi instruments with improved performance, durability, and patient outcomes.","PeriodicalId":516572,"journal":{"name":"Journal of Conservative Dentistry and Endodontics","volume":"174 ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139822044","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

An analysis of maxillary anterior teeth dimensions for the existence of golden proportion in the representative North Indian population 对北印度代表性人群上颌前牙黄金比例的分析

Journal of Conservative Dentistry and Endodontics Pub Date : 2024-02-01 DOI: 10.4103/jcde.jcde_235_23

Aashish Handa, K. Bhullar, Roohan Malhar Sandhu

{"title":"An analysis of maxillary anterior teeth dimensions for the existence of golden proportion in the representative North Indian population","authors":"Aashish Handa, K. Bhullar, Roohan Malhar Sandhu","doi":"10.4103/jcde.jcde_235_23","DOIUrl":"https://doi.org/10.4103/jcde.jcde_235_23","url":null,"abstract":"\u0000 \u0000 \u0000 Esthetic appearance of the face is a major concern in self-image among the majority of the population. The dimensions, anatomy, and arrangement of maxillary anterior are the key factors in the esthetic appearance of the face.\u0000 \u0000 \u0000 \u0000 The present study aimed to measure the mesiodistal dimensions of maxillary anterior teeth and analyzing the golden proportion in the representative North Indian population.\u0000 \u0000 \u0000 \u0000 Subjects were seated in the upright position in a dental clinical chair. A digital Vernier caliper was used to record the mesiodistal dimensions of central incisors (CIs), lateral incisor (LI), and canine (C) teeth in maximum smile position. A total of three sets of recordings were made by a single observer to avoid the measurement bias of both left and right sides of teeth. Digital images were also captured. Obtained measurements were used for the calculation of ratios and statistical analysis was done.\u0000 \u0000 \u0000 \u0000 The prevalence of golden ratio between right CI/LI was observed in 3.1% males and 3.2% females. The calculated median ratio was 1.2 for males and 1.3 for females which differs significantly (P > 0.05) from the golden ratio. The divine proportion between visible portion of right C/LI was seen in 39.5% males and 32.3% females with calculated median value for males being 0.6 and that for females was 0.7.\u0000 \u0000 \u0000 \u0000 The prevalence of golden proportion between the CI/LI in esthetically pleasing smiles was too small (mean-3.9 in males and 2.75 in females) while the golden ratio of 0.6 was found in the majority of the population irrespective of the gender.\u0000","PeriodicalId":516572,"journal":{"name":"Journal of Conservative Dentistry and Endodontics","volume":"204 ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139827393","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

An analysis of maxillary anterior teeth dimensions for the existence of golden proportion in the representative North Indian population 对北印度代表性人群上颌前牙黄金比例的分析

Journal of Conservative Dentistry and Endodontics Pub Date : 2024-02-01 DOI: 10.4103/jcde.jcde_235_23

Aashish Handa, K. Bhullar, Roohan Malhar Sandhu

{"title":"An analysis of maxillary anterior teeth dimensions for the existence of golden proportion in the representative North Indian population","authors":"Aashish Handa, K. Bhullar, Roohan Malhar Sandhu","doi":"10.4103/jcde.jcde_235_23","DOIUrl":"https://doi.org/10.4103/jcde.jcde_235_23","url":null,"abstract":"\u0000 \u0000 \u0000 Esthetic appearance of the face is a major concern in self-image among the majority of the population. The dimensions, anatomy, and arrangement of maxillary anterior are the key factors in the esthetic appearance of the face.\u0000 \u0000 \u0000 \u0000 The present study aimed to measure the mesiodistal dimensions of maxillary anterior teeth and analyzing the golden proportion in the representative North Indian population.\u0000 \u0000 \u0000 \u0000 Subjects were seated in the upright position in a dental clinical chair. A digital Vernier caliper was used to record the mesiodistal dimensions of central incisors (CIs), lateral incisor (LI), and canine (C) teeth in maximum smile position. A total of three sets of recordings were made by a single observer to avoid the measurement bias of both left and right sides of teeth. Digital images were also captured. Obtained measurements were used for the calculation of ratios and statistical analysis was done.\u0000 \u0000 \u0000 \u0000 The prevalence of golden ratio between right CI/LI was observed in 3.1% males and 3.2% females. The calculated median ratio was 1.2 for males and 1.3 for females which differs significantly (P > 0.05) from the golden ratio. The divine proportion between visible portion of right C/LI was seen in 39.5% males and 32.3% females with calculated median value for males being 0.6 and that for females was 0.7.\u0000 \u0000 \u0000 \u0000 The prevalence of golden proportion between the CI/LI in esthetically pleasing smiles was too small (mean-3.9 in males and 2.75 in females) while the golden ratio of 0.6 was found in the majority of the population irrespective of the gender.\u0000","PeriodicalId":516572,"journal":{"name":"Journal of Conservative Dentistry and Endodontics","volume":"13 6","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139887023","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

Evaluation of fracture resistance of maxillary premolars of different geometrical cavities restored with different composite resins incorporated with chitosan nanoparticles 不同几何形状龋洞的上颌前磨牙用掺入壳聚糖纳米颗粒的不同复合树脂修复后的抗断裂性评估

Journal of Conservative Dentistry and Endodontics Pub Date : 2024-02-01 DOI: 10.4103/jcde.jcde_264_23

Rahul S Halkai, S. Gopinagaruri, Kiran R Halkai

{"title":"Evaluation of fracture resistance of maxillary premolars of different geometrical cavities restored with different composite resins incorporated with chitosan nanoparticles","authors":"Rahul S Halkai, S. Gopinagaruri, Kiran R Halkai","doi":"10.4103/jcde.jcde_264_23","DOIUrl":"https://doi.org/10.4103/jcde.jcde_264_23","url":null,"abstract":"\u0000 \u0000 \u0000 Composites with 0.2% chitosan nanoparticles (CSN) are used recently; however, this combination needs to be studied in different cavity designs.\u0000 \u0000 \u0000 \u0000 The aim of the study was to compare the fracture resistance of maxillary premolars with different cavity geometries restored with different types of composite resins incorporated with 0.2% CSN.\u0000 \u0000 \u0000 \u0000 About 130 extracted human single-rooted maxillary premolars were embedded in acrylic molds 2 mm below cementoenamel junction, divided into five groups for cavity preparations of standardized dimensions. Group 1: (control) intact teeth (n = 10), Group 2: Class I cavities (n = 40), Group 3: Class II mesio-occlusal (MO) (n = 40), Group 4: Class II mesio-occluso-distal (MOD) (n = 40). Groups 2, 3, and 4 were subdivided into four subgroups for composite restoration; A: Neo spectra ST-Universal (NST); B: Tetric N-Ceram Bulk-fill (TNC); C: NST + CSN; and D: TNC + CSN and tested for fracture resistance using universal testing machine.\u0000 \u0000 \u0000 \u0000 One-way analysis of variance and post hoc Tukey’s tests were used for data analysis (P ≤ 0.05).\u0000 \u0000 \u0000 \u0000 In all groups, the highest fracture resistance was found in MOD cavities, followed by MO and least in Class I cavities. Subgroup D (TNC with CSN) showed the highest fracture resistance in all groups (P ≤ 0.05).\u0000 \u0000 \u0000 \u0000 Tetric N-Ceramic bulk fill with 0.25% CSN showed high fracture resistance in cavities with different geometries.\u0000","PeriodicalId":516572,"journal":{"name":"Journal of Conservative Dentistry and Endodontics","volume":"4 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139890780","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

Endocator-paradigm shift in the evaluation of microbial load in root canals 根管微生物负荷评估中的内定位器范式转变

Journal of Conservative Dentistry and Endodontics Pub Date : 2024-02-01 DOI: 10.4103/jcde.jcde_8_24

Shishir Singh, Nagesh Bolla

引用次数: 0

Comparative evaluation of the effect of ultrasonic and rotary agitation of herbal irrigating solutions on smear layer: A SEM study 超声波和旋转搅拌中草药冲洗液对涂片层影响的比较评估：扫描电子显微镜研究

Journal of Conservative Dentistry and Endodontics Pub Date : 2024-02-01 DOI: 10.4103/jcde.jcde_277_23

Prajhna R. Chavate, K. Ponnappa, A. Nanjappa

{"title":"Comparative evaluation of the effect of ultrasonic and rotary agitation of herbal irrigating solutions on smear layer: A SEM study","authors":"Prajhna R. Chavate, K. Ponnappa, A. Nanjappa","doi":"10.4103/jcde.jcde_277_23","DOIUrl":"https://doi.org/10.4103/jcde.jcde_277_23","url":null,"abstract":"\u0000 \u0000 \u0000 Instrumentation and irrigation balance helps in effective removal of endodontic microbes housing inside the smear layer.\u0000 \u0000 \u0000 \u0000 This study aimed to (1) evaluate whether activation of the irrigating solutions with two different systems during the final irrigation step can lead to smear layer formation in the middle and apical third of the root canal and (2) evaluate and compare the smear layer removal ability of the aqueous extracts of Emblica officinalis and Morinda citrifolia.\u0000 \u0000 \u0000 \u0000 A total of 72 single-rooted teeth were prepared up to F4 ProTaper. The specimens were assigned into eight groups of nine teeth each, according to the final irrigant and activation techniques. Further, the teeth were evaluated under SEM for endodontic smear layer at the middle and apical third.\u0000 \u0000 \u0000 \u0000 Inferential statistics included Pearson’s Chi-square. Level of significance was set at 0.05 at 95% confidence level.\u0000 \u0000 \u0000 \u0000 Ultrasonic activation system showed significant (P = 0.000) amount of smear layer compared to XP-Endo Finisher file. A significant difference (P = 0.00) in the smear layer removal was observed when 6% M. citrifolia was activated with XP-Endo Finisher file both in the middle and apical third.\u0000 \u0000 \u0000 \u0000 Within the limitations of this in vitro study, it can be concluded that smear layer formation was noted with ultrasonic and XP-Endo Finisher file when saline was used as an irrigant. 6% M. citrifolia when activated with XP-Endo Finisher file showed best results among all other experimental groups.\u0000","PeriodicalId":516572,"journal":{"name":"Journal of Conservative Dentistry and Endodontics","volume":"32 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139815525","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

Comparative evaluation of the marginal fit of computer-aided design-computer aided manufacturing fabricated crowns from direct and indirect digital impression – A systematic review 直接和间接数字印模制作的计算机辅助设计-计算机辅助制造牙冠边缘密合度的比较评估 - 系统综述

Journal of Conservative Dentistry and Endodontics Pub Date : 2024-02-01 DOI: 10.4103/jcde.jcde_42_23

R. R. Seshan, Hari Raghavendar Karthikeyan, R. M. Rajan, A. Rajakumaran, Preethi Varadan, Rajeswari Gopal

{"title":"Comparative evaluation of the marginal fit of computer-aided design-computer aided manufacturing fabricated crowns from direct and indirect digital impression – A systematic review","authors":"R. R. Seshan, Hari Raghavendar Karthikeyan, R. M. Rajan, A. Rajakumaran, Preethi Varadan, Rajeswari Gopal","doi":"10.4103/jcde.jcde_42_23","DOIUrl":"https://doi.org/10.4103/jcde.jcde_42_23","url":null,"abstract":"\u0000 The accuracy of the digital impression method is responsible for fabricating crowns with adequate marginal fit which in turn determines the postendodontic prognosis. This systematic review was undertaken to identify the influence of the two digital impression techniques in producing full coverage crowns with better marginal fit. This systematic review was conducted according to the Preferred Reporting Items for Systematic Review and Meta-analysis statement. A detailed search was done in electronic databases (PubMed, EBSCOhost, LILACS, Cochrane) along with hand searches of reference articles. In vivo crossover studies comparing the marginal fit of the computer-aided design-computer-aided manufacturing (CAD-CAM) fabricated crowns from direct and indirect digital impressions published from inception till July 2023 were included in this review. The quality assessment of the included articles was done based on a modified Cochrane collaboration tool for crossover studies. A total of 280 articles were identified, after duplicate removal, title and abstract screening, and full-text evaluation, 7 articles were included in this systematic review. The overall quality of evidence is moderate. The CAD-CAM crowns fabricated from direct digital impressions exhibited a better marginal fit than those crowns fabricated by indirect digital impressions. The overall quality of evidence is moderate. Further clinical studies has to be conducted for evaluating the latest technologies towards achieving the misfit of zero.","PeriodicalId":516572,"journal":{"name":"Journal of Conservative Dentistry and Endodontics","volume":"16 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139874627","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

Is a mix – A fix? “A microscopic analysis of depth of penetration of three combinations of irrigants” 混合剂是一种固定剂吗？"三种灌溉剂组合渗透深度的显微分析"

Journal of Conservative Dentistry and Endodontics Pub Date : 2024-02-01 DOI: 10.4103/jcde.jcde_265_23

Yantrapragada Lakshmi Sunanda, K. Parvathaneni, T. Raju, Abitha Seshadri, Nadimpalli Mahendra Varma, G. Dondapati

{"title":"Is a mix – A fix? “A microscopic analysis of depth of penetration of three combinations of irrigants”","authors":"Yantrapragada Lakshmi Sunanda, K. Parvathaneni, T. Raju, Abitha Seshadri, Nadimpalli Mahendra Varma, G. Dondapati","doi":"10.4103/jcde.jcde_265_23","DOIUrl":"https://doi.org/10.4103/jcde.jcde_265_23","url":null,"abstract":"\u0000 \u0000 \u0000 The aim of the study is to evaluate the penetration depth of irrigants mixed with NaOCl into dentinal tubules at the apical third of the root canal using a confocal laser scanning microscope (CLSM).\u0000 \u0000 \u0000 \u0000 Thirty-six single-rooted teeth were selected, decoronated, and straight-line access established. Then, the canal was enlarged with hand Protaper till size F3. The samples were divided randomly into three groups: Group 1 was irrigated with 3% NaOCl mixed with 1% phytic acid; Group 2 was irrigated with 3% NaOCl mixed with 18% etidronic acid; and Group 3 was irrigated with 3% NaOCl mixed with chitosan. The samples were subjected to CLSM evaluation. One-way analysis of variance with Tukey’s post hoc was used for statistical analysis.\u0000 \u0000 \u0000 \u0000 Group 3 (NaOCl with chitosan) showed a greater depth of penetration in comparison to Groups 1 and 2.\u0000 \u0000 \u0000 \u0000 Within limitations, it can be concluded that chitosan, in combination with NaOCl can be used as an alternative to the current irrigation protocol.\u0000","PeriodicalId":516572,"journal":{"name":"Journal of Conservative Dentistry and Endodontics","volume":"310 3-4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139877220","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

Revolutionizing endodontics: Advancements in nickel–titanium instrument surfaces 牙髓病学的革命：镍钛器械表面的进步

Journal of Conservative Dentistry and Endodontics Pub Date : 2024-02-01 DOI: 10.4103/jcde.jcde_248_23

Paridhi Agrawal, M. Chandak, P. Nikhade, Aditya Satyawansingh Patel, Jay Bhopatkar

{"title":"Revolutionizing endodontics: Advancements in nickel–titanium instrument surfaces","authors":"Paridhi Agrawal, M. Chandak, P. Nikhade, Aditya Satyawansingh Patel, Jay Bhopatkar","doi":"10.4103/jcde.jcde_248_23","DOIUrl":"https://doi.org/10.4103/jcde.jcde_248_23","url":null,"abstract":"\u0000 Nickel–titanium (NiTi) instruments have become the backbone of endodontics due to their exceptional properties, superelasticity, and shape memory. However, challenges such as unexpected breakage, poor cutting efficiency, and corrosion have prompted researchers to explore innovative surface modifications to enhance their performance. This comprehensive review discusses the latest advancements in NiTi metallurgy and their impact on rotary NiTi file systems. Various surface treatment techniques, including ion implantation, cryogenic treatment (CT), thermal nitridation, electropolishing, and physical or chemical vapor deposition, have been investigated to minimize defects, boost surface hardness, and improve cyclic fatigue resistance. Ion implantation has shown promise by increasing wear resistance and cutting efficiency through nitrogen ion incorporation. Thermal nitridation has successfully formed titanium nitride (TiN) coatings, resulting in improved corrosion resistance and cutting efficiency. CT has demonstrated increased cutting efficiency and overall strength by creating a martensite transformation and finer carbide particles. Electropolishing has yielded mixed results, providing smoother surfaces but varying impacts on fatigue resistance. Physical or chemical vapor deposition has proven effective in forming TiN coatings, enhancing hardness and wear resistance. Furthermore, the concept of surface functionalization with silver ions for antibacterial properties has been explored. These advancements present an exciting future for endodontic procedures, offering the potential for enhanced NiTi instruments with improved performance, durability, and patient outcomes.","PeriodicalId":516572,"journal":{"name":"Journal of Conservative Dentistry and Endodontics","volume":"16 8","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139882018","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