Journal of conservative dentistry and endodontics最新文献

{"title":"Buckling resistance of various pathfinding endodontic instruments: An <i>in vitro</i> study.","authors":"Ujjwal Das, Rajesh Kumar Das, Kallol Kumar Saha, Lugu Buru Murmu, Srimanta Banerjee, Rishila Nag","doi":"10.4103/JCDE.JCDE_54_25","DOIUrl":"https://doi.org/10.4103/JCDE.JCDE_54_25","url":null,"abstract":"<p><strong>Introduction: </strong>Lateral bending of an endodontic instrument under axial load is referred to as buckling, an essential property to resist elastic or plastic deformation during canal scouting. Pathfinding file systems with sufficient buckling resistance can assist in locating the orifice of a canal and gaining entrance to the apical one-third of the root canal.</p><p><strong>Aim: </strong>The purpose of the present study is to assess and compare the buckling resistance of various pathfinding file systems.</p><p><strong>Materials and methods: </strong>This research analyzed the buckling resistance of C+ File, C-Pilot File, K-File, ProGlider, TruNatomy glider, and PathFile. A gradually increasing axial load was applied to the instruments with the help of a universal testing machine, and for each instrument, the maximum load necessary to achieve a lateral elastic displacement of 1 mm was documented.</p><p><strong>Statistical analysis: </strong>After the collection of data, one-way analysis of variance, followed by a Tukey's post hoc test, was utilized for comparisons between groups. <i>P</i> ≤0.05 indicated statistical significance.</p><p><strong>Results: </strong>The study revealed that the C+ File had the highest mean buckling resistance, while the PathFile exhibited the lowest value.</p><p><strong>Conclusion: </strong>Buckling resistance is influenced by the materials, manufacturing processes, and design of pathfinding instruments. Stainless steel instruments exhibit greater resistance to buckling than nickel-titanium instruments.</p>","PeriodicalId":516842,"journal":{"name":"Journal of conservative dentistry and endodontics","volume":"28 4","pages":"384-388"},"PeriodicalIF":0.0,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12037123/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144048917","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}

{"title":"Comparative evaluation of effect of N-acetyl cysteine, maleic acid, and ethylenediaminetetraacetic Acid on the depth of dentinal tubule penetration of an epoxy resin-based root canal sealer: A confocal laser scanning microscopy study.","authors":"Greeta Sunny, Preeti Kore Doddwad, Suresh Shenvi","doi":"10.4103/JCDE.JCDE_44_25","DOIUrl":"https://doi.org/10.4103/JCDE.JCDE_44_25","url":null,"abstract":"<p><strong>Background: </strong>Effective root canal irrigation removes the smear layer for optimal sealer penetration. While 17% ethylenediaminetetraacetic Acid (EDTA) is effective, concerns about dentin erosion exist. Alternatives like 7% maleic acid (MA) and 20% N-acetylcysteine (NAC) show promise with fewer adverse effects.</p><p><strong>Aim: </strong>To compare the effects of 20% NAC, 7% MA, and 17% EDTA as final irrigating solutions on the depth of sealer penetration into dentinal tubules at coronal, middle, and apical thirds of root canals using confocal laser scanning microscopy (CLSM).</p><p><strong>Materials and methods: </strong>Sixty-six single-canal mandibular premolars free of caries, fractures, or prior treatment were selected. The teeth were decoronated to 14 mm root length using a diamond disk under water spray. Working length was determined by inserting a size 10 K-file until visible at the apical foramen, subtracting 1 mm. Root canals were instrumented up to F3 using ProTaper Universal rotary files with 1 mL of 2.5% NaOCl irrigation between files. Based on the final irrigation protocol, samples were divided into three groups (<i>n</i> = 22): Group 1-20% NAC, Group 2-7% MA, and Group 3-17% EDTA. Each group was irrigated with 5 mL of the respective irrigant, followed by a final rinse with 10 mL of distilled water. AH Plus sealer with 0.1% Rhodamine B was applied using a #25 Lentulo, and an F3 gutta-percha cone coated with the sealer was placed to working length, trimmed, and sealed with Cavit. Samples were incubated at 37°C and 100% humidity for 7 days to allow sealer setting. Roots were sectioned at 2, 5, and 8 mm from the apex to obtain 1 mm thick sections. Sealer penetration into dentinal tubules was evaluated using CLSM at ×10 magnification, measuring the penetration depth in micrometers from the canal wall to the point of maximum sealer infiltration using ImageJ software, measuring the longest penetration depth from the canal wall to the point of deepest sealer infiltration.</p><p><strong>Results: </strong>Sealer penetration was greatest in the coronal third, followed by the middle, with the least in the apical third (<i>P</i> < 0.0001). NAC demonstrated the highest mean in the coronal region (829.35 ± 85.36), while MA exhibited superior performance in the middle (522.92 ± 112.32) and apical (361.76 ± 49.03) regions. Intergroup comparisons showed superior penetration with 7% MA in the apical region (<i>P</i> < 0.0001). NAC and EDTA demonstrated comparable penetration across regions.</p><p><strong>Conclusion: </strong>While all irrigants enhanced sealer penetration, 7% MA was most effective in the apical region. Both 7% MA and 20% NAC can serve as alternatives to 17% EDTA for final irrigation.</p>","PeriodicalId":516842,"journal":{"name":"Journal of conservative dentistry and endodontics","volume":"28 4","pages":"309-313"},"PeriodicalIF":0.0,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12037131/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144047821","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}

{"title":"Clinical evaluation of etiological co-variables, characteristics, and treatment modalities of noncarious cervical lesions.","authors":"Dhwani Morakhia, Geeta Asthana, Ravina Parmar, Anooja Mathirat, Rajahree Tamuli","doi":"10.4103/JCDE.JCDE_55_25","DOIUrl":"https://doi.org/10.4103/JCDE.JCDE_55_25","url":null,"abstract":"<p><strong>Background: </strong>Non-carious cervical lesions (NCCLs) pose a clinical challenge due to multifactorial aetiology and varied clinical presentations, making it essential to understand their characteristics and treatment modalities to improve treatment outcomes.</p><p><strong>Aim and objectives: </strong>To study multifactorial aetiology, clinical characteristics and management using tooth-coloured materials.</p><p><strong>Materials and methods: </strong>Patient's case history was noted to determine aetiology and characteristics of NCCL. Study included 180 teeth, divided in two main groups based on shape of the lesion- Group 1(<i>n</i>=90): Saucer/round-shaped NCCL and Group 2(<i>n</i>=90): Wedge-shaped NCCL. Groups were further divided in three subgroups as per restorative materials used -Group1a & Group 2a: RMGIC, Group 1b & Group 2b: Flowable Bulk-fill Composite, and Group 1c & 2c: Packable Composite. Assessment was done using Revised FDI Criteria at baseline, 3, 6 and 12 months. Statistics was performed using SPSS version 26.0. Intragroup comparison was done using repeated measures ANOVA followed by Bonferroni post-hoc test. Intergroup analysis was done using independent t-test and one-way ANOVA followed by Bonferroni post-hoc test.</p><p><strong>Results: </strong>RMGIC demonstrated least postoperative sensitivity in wedge-shaped lesions compared to bulk-fill-flowable and packable composites. All materials showed similar performance in wedge-shaped lesions, but RMGIC exhibited higher surface roughness in saucer-shaped lesions. Packable composites showed more marginal staining in wedge-shaped lesions, while RMGIC had the least staining in saucer-shaped lesions.</p><p><strong>Conclusion: </strong>Understanding the interplay between abrasion, biocorrosion, and abfraction is crucial for long-term treatment outcomes. The overall performance of RMGIC was better for wedge shaped, and bulk-fill flowable performed better in saucer shaped lesions.</p>","PeriodicalId":516842,"journal":{"name":"Journal of conservative dentistry and endodontics","volume":"28 4","pages":"371-376"},"PeriodicalIF":0.0,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12037118/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144054047","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}

{"title":"The quest for comfort: Exploring the effectiveness of and patient satisfaction with needleless anesthesia in dental procedures.","authors":"Shishir Singh, Minu Koshy","doi":"10.4103/JCDE.JCDE_152_25","DOIUrl":"https://doi.org/10.4103/JCDE.JCDE_152_25","url":null,"abstract":"","PeriodicalId":516842,"journal":{"name":"Journal of conservative dentistry and endodontics","volume":"28 4","pages":"307-308"},"PeriodicalIF":0.0,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12037121/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144049385","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}

{"title":"Comparative evaluation of marginal and internal fit of endocrowns with lithium disilicate, biocompatible high-performance polymer, and monolithic ceramic materials using computer-aided design and computer-aided manufacturing technology.","authors":"Manoj Kumar, Kitty Sidhu, Jagat Bhushan","doi":"10.4103/JCDE.JCDE_857_24","DOIUrl":"https://doi.org/10.4103/JCDE.JCDE_857_24","url":null,"abstract":"<p><strong>Aims: </strong>To compare marginal and internal fit of lithium disilicate (LDS), Biocompatible High-Performance Polymer (BIO-HPP), and monolithic zirconia ceramic endocrowns fabricated using computer-aided design and computer-aided manufacturing (CAD/CAM) technology.</p><p><strong>Materials and methods: </strong>Thirty human extracted mandibular 1^st molars were selected. Working length was established and biomechanical preparation was carried out to size 25%-4% using NeoEndo rotary files in the crown down technique. Intermittent irrigation was performed after each instrument by 5.25% sodium hypochlorite followed by irrigation with 17% Ethylenediaminetetraacetic acid to remove the smear layer. Final rinse was done with normal saline, and the canals were dried before obturation with a single cone gutta-percha technique and then randomly distributed into three-groups according to type of material used for fabrication. Group 1-LDS, Group 2-BIO-HPP, and Group 3-monolithic zirconia ceramic. Preparation of the samples was done for endocrowns, impression recorded with digital scanner followed by fabrication by CAD/CAM technique. Samples were sectioned in the midsagittal plane and evaluated under a stereomicroscope.</p><p><strong>Results: </strong>Bio-HPP biomaterial showed the highest marginal gap discrepancy followed by monolithic zirconia ceramic material and then LDS material in the descending order. Internal gap was highest in Monolithic Zirconia Ceramic material followed by Bio-HPP and LDS. LDS material exhibited minimal discrepancies in both the parameters (marginal and internal gap).</p><p><strong>Conclusion: </strong>Taking into account the limitations of this study, it is evident that the choice of Bio-HPP for endocrowns can be taken up in future after further clinical trials and long-term follow-up studies.</p>","PeriodicalId":516842,"journal":{"name":"Journal of conservative dentistry and endodontics","volume":"28 4","pages":"389-393"},"PeriodicalIF":0.0,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12037125/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144059168","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}

{"title":"Evaluation of bleaching efficiency of carbamide peroxide applied on different dental surfaces: An <i>in vitro</i> study.","authors":"R Gokulnath, R S Mohan Kumar, A Jayasenthil, R Anjana, G Sree Vidya","doi":"10.4103/JCDE.JCDE_634_24","DOIUrl":"https://doi.org/10.4103/JCDE.JCDE_634_24","url":null,"abstract":"<p><strong>Introduction: </strong>Tooth color is an important issue for esthetic dentistry professionals and for patients that wish to enhance the appearance of their smiles. At-home whitening under professional supervision is the usual form of treatment for tooth discolorations. The goal of this study was to assess the effectiveness of carbamide peroxide (CP) bleaching through the application of at-home bleaching gel on various dental surfaces.</p><p><strong>Materials and methods: </strong>Forty coffee-stained premolars were randomly assigned into four groups: only application on the buccal surface (A), only application on the lingual surface (B), application on the buccal and lingual surfaces simultaneously (C), and a control group with no bleaching (D). At-home bleaching gel (Polanight 22%) was used for the procedure. A digital spectrophotometer was used to evaluate bleaching efficacy (color change in CIELAB [ΔE ab] and Whitening Index for Dentistry [ΔWID]).</p><p><strong>Results: </strong>The simultaneous application of CP on buccal and lingual surfaces provides little additional efficiency compared to the buccal application alone, resulting in acceptable bleaching efficacy.</p>","PeriodicalId":516842,"journal":{"name":"Journal of conservative dentistry and endodontics","volume":"28 4","pages":"366-370"},"PeriodicalIF":0.0,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12037132/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144004641","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}

{"title":"Comparative evaluation of antioxidants on the microshear bond strength of bleached enamel: An <i>in vitro</i> study.","authors":"Shreya Dharni, Nidhi Sharma, Dakshita Joy Sinha, Sarita Singh, Manjiri Honap Nagesh, Neha Verma","doi":"10.4103/JCDE.JCDE_497_24","DOIUrl":"https://doi.org/10.4103/JCDE.JCDE_497_24","url":null,"abstract":"<p><strong>Background: </strong>The aim was to compare and assess the effects of tocopherol, glutathione (GSH), and sodium ascorbate (SA) on bleached enamel's resin tooth-colored microshear bonding capacity.</p><p><strong>Materials and methods: </strong>After flattening, out 120 sound human premolars and dividing the teeth into four groups: Group A: No bleaching or antioxidants (the control group), Group B received SA, Group C received GSH, and Group D received tocopherol.</p><p><strong>Results: </strong>The resin tooth-colored was bonded in just one step, and the microshear degree of adhesion of tooth-colored to bleached enamel was evaluated. The data were analyzed using a one-way ANOVA followed by the <i>post hoc</i> Tukey test.</p><p><strong>Conclusion: </strong>The microshear degree of adhesion (SBS) of tooth-colored resin diminishes after bleaching. Nonetheless, antioxidants such as SA and GSH can effectively restore the reduced degree of adhesion capacity.</p>","PeriodicalId":516842,"journal":{"name":"Journal of conservative dentistry and endodontics","volume":"28 4","pages":"343-348"},"PeriodicalIF":0.0,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12037127/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144035479","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}

{"title":"Quantitative analysis of troughing depth for successful instrument retrieval using the loop technique: A cross-sectional <i>in vivo</i> study.","authors":"Vivek Devidas Mahale, Tanushree Saxena, Sonali Sharma, E Aparna Mohan","doi":"10.4103/JCDE.JCDE_844_24","DOIUrl":"https://doi.org/10.4103/JCDE.JCDE_844_24","url":null,"abstract":"<p><strong>Introduction: </strong>Fractured endodontic instruments complicate root canal treatment by obstructing cleaning and shaping. The loop technique is a widely used retrieval method, but the optimal depth of dentin troughing required for successful retrieval remains unclear. Insufficient troughing can lead to failed attempts, wasted materials, and operator fatigue, whereas excessive troughing may increase chair side time, cause dentin loss, and lead to iatrogenic errors.</p><p><strong>Aim: </strong>The aim of the study was to evaluate the depth of dentin troughing required for successful retrieval of fractured endodontic instruments using the loop technique and to analyze secondary outcomes, including retrieval time and success rates.</p><p><strong>Materials and methods: </strong>This cross-sectional <i>in vivo</i> study included 60 teeth with fractured instruments, comprising 39 rotary and 21 hand instruments. The procedure was performed using high magnification, with a modified Gates Glidden drill and an ISO 25 sonic spreader to create a staging platform and expose the file head. The loop technique, employing a 27-gauge syringe and 0.02 mm Stainless steel wire, was used for retrieval. Troughing depth and retrieval time were recorded. Measurements were taken using a stereo microscope and analyzed with ImageJ software.</p><p><strong>Statistical analysis: </strong>Data obtained were statistically analyzed using ANOVA, paired samples test. <i>P</i> < 0.05 was considered statistically significant.</p><p><strong>Results: </strong>The mean troughing depth was significantly greater for rotary instruments (0.42 mm ± 0.25 mm) than for hand instruments (0.28 mm ± 0.18 mm). The overall success rate was 98.3%, with no significant difference between rotary (97.4%) and hand instruments (100%). Retrieval time was significantly longer for rotary instruments (46.2 ± 3.2 min) than for hand instruments (32.4 ± 2.4 min, <i>P</i> < 0.05).</p><p><strong>Conclusion: </strong>Rotary instruments require deeper troughing and longer retrieval times compared to hand instruments. This study provides evidence-based guidance for optimizing fractured instrument retrieval while preserving tooth structure and minimizing procedural risks.</p>","PeriodicalId":516842,"journal":{"name":"Journal of conservative dentistry and endodontics","volume":"28 4","pages":"360-365"},"PeriodicalIF":0.0,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12037126/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144047559","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}

{"title":"Fracture resistance and volumetric dentin change after management of broken instrument using static navigation - An <i>in vitro</i> study.","authors":"Shady Atef Adeeb Yassa, Mohamed Nabeel, Ahmed M Ghobashy, Moataz B Alkhawas","doi":"10.4103/JCDE.JCDE_27_25","DOIUrl":"https://doi.org/10.4103/JCDE.JCDE_27_25","url":null,"abstract":"<p><strong>Context: </strong>Guided endodontics has been revolutionizing endodontics, emphasizing the need to further investigate its capabilities in terms of degrading separated instruments will be of great value.</p><p><strong>Aims: </strong>The aim of this study was to compare, in vitro, the static endodontic guide and ultrasonic methods for managing separated instruments, focusing on fracture resistance, dentin changes, and procedural time.</p><p><strong>Materials and methods: </strong>Twenty-two extracted double-rooted maxillary first premolars were decoronated to 15 mm in length and mounted in acrylic resin blocks for standardized cone-beam computed tomography (CBCT) scanning. Size 25/0.06 rotary files were notched at 3 mm and separated in the coronal third of the buccal canals under controlled conditions. Teeth were randomly assigned into two groups (<i>n</i> = 11): Group G utilized static endodontic guides fabricated for instrument degradation, and Group U employed conventional ultrasonic technique for retrieval. Volumetric dentin loss, fracture resistance, and time required for retrieval were evaluated using CBCT scans, universal testing machines, and stopwatch recordings.</p><p><strong>Statistical analysis: </strong>Normality tested; t-test for parametric, Mann-Whitney for nonparametric.</p><p><strong>Results: </strong>The ultrasonic group showed significantly higher fracture resistance and less root canal volume increase compared to the static endodontic guide group. However, the ultrasonic group required significantly more time for retrieval. All differences were statistically significant (<i>P</i> < 0.001).</p><p><strong>Conclusions: </strong>The study compares ultrasonic and static endodontic guides for instrument retrieval, highlighting static endodontic guides' speeds but increased dentin loss, deeming them unsuitable for degrading instruments with burs. Further research is needed.</p>","PeriodicalId":516842,"journal":{"name":"Journal of conservative dentistry and endodontics","volume":"28 4","pages":"319-324"},"PeriodicalIF":0.0,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12037122/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144037222","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}

{"title":"Exploring anatomical uniqueness: A rare case report of the buccomesial groove variation in maxillary lateral incisor and its management.","authors":"Shubhangi Kadoo, Pallav Mahesh Patni, Sanket Hans Pandey, Rahul Vaswani","doi":"10.4103/JCDE.JCDE_835_24","DOIUrl":"https://doi.org/10.4103/JCDE.JCDE_835_24","url":null,"abstract":"<p><p>This case report introduces the rare anatomical variation in a maxillary lateral incisor, known as the buccomesial groove (BMG). The BMG is rare and leads to endodontic-periodontal lesions. Due to its subtle presence, funnel-shaped form, and varying depth in the root, it facilitates microbial film adhesion, leading to pathology. A 25-year-old Asian male patient presented with pain in his maxillary left lateral incisor. After comprehensive clinical and radiographic assessments, the diagnosis of pulpal necrosis with symptomatic apical periodontitis associated with BMG in the maxillary left lateral incisor was confirmed. A cone-beam computed tomography preoperatively showed the groove extending from two-thirds of the buccal to the mesial side of the left lateral incisor. This case presents a new anatomical anomaly, highlighting the necessity for precise diagnosis and treatment.</p>","PeriodicalId":516842,"journal":{"name":"Journal of conservative dentistry and endodontics","volume":"28 4","pages":"394-397"},"PeriodicalIF":0.0,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12037133/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144059546","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}