Molars In Indian Population Research Articles

A Cone Beam Computed Tomographic Evaluation of Root Canal Variations in Primary Mandibular Second Molars and Permanent Mandibular First Molars in Indian Population - A Retrospective Study

Background Primary teeth in some instances can have peculiar internal root and canal geometry including interconnections involving furcation with horizontal anastomoses which makes endodontic management extremely challenging. Being one of the first permanent teeth to erupt the mandibular first permanent molars MFPMs are frequently afflicted by caries neccessitating endodontic management.Aim The study aimed to determine the variations in the morphology of the root canals of primary mandibular second molars PMSMs and MFPMs and also the usefulness of Cone Beam Computerized Tomography CBCT in determining the root canal morphology. Methods Fifty CBCT images of children aged 5-10 years were obtained from the institutional database. Hundred PMSMs and MFPMs each were analyzed for a variety of factors including the number of roots and root canals and their form.Results Most of the PMSMs and MFPMs n96 had two distinct roots and the remaining four had three roots. In the distal root one root and two root canals were recognized in 62 cases one root and a single canal in 34 and two roots and a single canal in each of the remaining 4 cases. In the mesial root two root canals were detected in 96 cases and a single canal was noted in 4 of cases. Moreover 72 of the MFPM specimens had three root canals 20 had four and 8 had just two canals.Conclusion This study showed that different root canal configurations can be found in PMSMs and MFPMs. Therefore these variations should be considered during the management.

The prevalence of bilateral three-rooted mandibular first molar in Indian population.

The purpose of the present study was to evaluate the prevalence of bilateral three-rooted mandibular first and second molars in Indian population. A total of 215 patients were screened bilaterally for mandibular first and second molar and 430 samples of periapical radiographs were obtained. The gender, symmetry, and prevalence of three-rooted mandibular first and second molars were recorded. The correlation between left and right side occurrences and distribution were recorded and analysed using Z-test. The results showed that 33 teeth had three-rooted mandibular first molars, 16 male and 17 female (P=0.442). Overall, 21 teeth of right jaw and 12 teeth of left jaw (P=0.103) showed presence of an extra-root. The prevalence of three-rooted mandibular first molars was 7.67% and second molar was 0.23%. The bilateral frequency distribution was 3.72% for the first molar. There was no statistically significant difference between right side and left side mandibular molars. Also, gender did not show a significant relationship with this variant. The endodontic treatments of first mandibular molars require a careful clinical approach in Indian population as a high racial prevalence of 7.67% three-rooted molars was found. However, in the same population, 0.23% mandibular second molars had three roots.

Root canal morphology of human primary maxillary molars in Indian population using spiral computed tomography scan: An in vitro study

Aim: The aim of the study was to evaluate the root canal morphology of primary maxillary molars in Indian population using spiral computed tomography (SCT). Materials and Methods: The 30 extracted primary maxillary molars were collected. The teeth were scanned using SCT. The scanned data was then transferred to image analysis software and evaluated for the following: Distance between the central fissure to furcation, distance between the central fissure to the floor of the pulp chamber, height of the pulp chamber (roof-floor), distance between the floor of the pulp chamber to the furcation and number of canals. Results: The results of this study shows that the average mean distance from the central fissure to the floor of the pulp chamber is 5.02 mm and 5.32 mm in first maxillary primary molar and second maxillary primary molar. Conclusion: Knowledge of the root canal morphology and anatomical landmarks of the primary maxillary molar might be a very helpful indicator to the dentist during access opening.

Radix Entomolaris in Mandibular First Molars in Indian Population: A Review and Case Reports

Purpose. The aim of this paper is to present cases of mandibular first molars with an additional distolingual root and their management using appropriate instruments and techniques. Basic Procedures and Main Findings. Mandibular molars can sometimes present a variation called radix entomolaris, wherein the tooth has an extra root attached to its lingual aspect. This additional root may complicate the endodontic management of the tooth if it is misdiagnosed or maltreated. This paper reviews the prevalence of such cases in Indian population and reports the management of 6 such teeth. Principal Conclusions. (1) It is crucial to be familiar with variations in tooth/canal anatomy and characteristic features since such knowledge can aid location and negotiation of canals, as well as their subsequent management. (2) Accurate diagnosis and careful application of clinical endodontic skill can favorably alter the prognosis of mandibular molars with this root morphology.