Evaluation of occlusal groove patterns of mandibular first and second molars in an Indian population: A forensic anthropological study

Phulari, Rashmi G S; Rathore, Rajendrasinh; Takvani, Mili D; Jain, Shivani

doi:10.4103/ijdr.ijdr_559_15

Cited by 5 publications

(8 citation statements)

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“…[18] The result of a study conducted on the Gujarati population by Phulari et al also agrees with the current study. [19] Another study on the Gujarati population by Dholia and Manjunatha also corroborates with the present study establishing the prevalence of “Y” and “+” patterns in mandibular first and second molars, respectively. [20] Although prevalence of a specific type of groove pattern was observed, minute analysis revealed that there are obvious differences in the groove pattern among different individuals.…”

Section: Discussionsupporting

confidence: 91%

Qualitative assessment of the dental groove pattern and its uniqueness for forensic identification

Roy

Rohith

Nilendu

et al. 2019

J Forensic Dent Sci

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Introduction:Teeth are invaluable in both the living and the deceased for forensic identification and profiling purposes. The occlusal surface patterns in the molars of an individual depend on both intrinsic and extrinsic factors. The individualistic nature of the groove pattern can be used to determine the identity of an individual by the process of comparative identification.Aim and Objective:The objective of this study is to determine the uniqueness of the groove pattern among individuals by the means of digital analysis.Materials and Methods:An experimental study was conducted on 80 dental casts where the occlusal groove patterns of 1st and 2nd molars from each cast were traced digitally using image analysis software GIMP (v 2.10.6). The traced patterns were then examined to determine their uniqueness.Results:The most common groove patterns for the maxillary 1st and 2nd molars were found to resemble “Branched H” and “H”, respectively. “Y” pattern was observed to be the most common in mandibular 1st molar, whereas mandibular 2nd molar most commonly exhibited “+” pattern. No two groove patterns were similar in the analysis.Conclusion:Digital method of analysis is preferable over conventional manual methods as it is noninvasive and precise. The individualistic nature of occlusal groove patterns may play an important role in comparative forensic identification.

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Section: Discussionsupporting

confidence: 91%

Qualitative assessment of the dental groove pattern and its uniqueness for forensic identification

Roy

Rohith

Nilendu

et al. 2019

J Forensic Dent Sci

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“…As for the presence of prevalent groove pattern, the predominant pattern in this study was "+" form (88.4%), which is similar to other reports. 6,8,9,20,29,33 When the complete occlusal configuration was studied that included both the occlusal groove pattern and the frequency of cusps, the bilateral "+4" form (85.4%) was most frequently present in our study sample, that was analogous to studies conducted on the Indian and Saudi population. 20,29,33 Majority of the dental casts presented with groove shaped "+" and lesser number showed the primitive "Y" form in present finding.…”

Section: Figure-1 Frequency Distribution Of Occlusal Characteristicssupporting

confidence: 58%

Permanent Mandibular Second Molars

Ansari

Shaikh

Zaidi

et al. 2018

TPMJ

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Objectives: Tooth morphology plays an important role in dental anthropology& forensic odontology. This study was conducted to determine the frequencies of variationsin occlusal surface patterns in permanent mandibular second molars in a subset of Pakistanipopulation. Data Source: 500 medical and dental students of Dow University of Health Sciencesand healthy volunteers visiting the dental OPD with age range from 17 to 25 years. Design ofStudy: Cross-sectional analytical Study. Setting: Department of Oral Biology, Dr. IshratulIbadKhan Institute of Oral Health Sciences, Dow University of Health Sciences. Period: May 2017till August 2017. Materials & Methods: This analytical study was conducted in the departmentof Oral Biology at Dr Ishratul Ibad Khan Institute of Oral Health Science. Five hundred dentalcasts after interoral exam and impression taking were studied for the variations in the frequencyof of cusps and their relative groove and fissure pattern. Statistical analysis was performed byDescriptive analysis and Chi Square. Results: Out of the fivbe hundred casts that were analysed,51% were of males and 49% were of females. The four-cusped variety of mandibular molars withpresence of distal fovea and distal marginal ridge was the most frequent (95.4%) while the mostprevalent occlusal groove form was “+” shape (88.4%). Frequently present occlusal patternwas the “+4” form (85.4%). Conclusion: The occlusal configurations of mandibular molarsshowed high degree of variability. The most frequently occurring pattern of occlusal surface ofmandibular second molars in this subset of Pakistani population was determined to be “+4”form. These findings can be used for forensic, teaching & clinical purposes by providing aPakistani database for morphological characteristic of mandibular molars.

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“…The high percentage of “+-” shaped groove pattern and low percentage of primitive “y-” shaped pattern were evident from a school population study conducted at Gujarat. [ 26 ]…”

Section: Dentificationmentioning

confidence: 99%

Oral pathology in forensic investigation

Shamim

2018

J Int Soc Prevent Communit Dent

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Evaluation of occlusal groove patterns of mandibular first and second molars in an Indian population: A forensic anthropological study

Cited by 5 publications

References 1 publication

Qualitative assessment of the dental groove pattern and its uniqueness for forensic identification

Qualitative assessment of the dental groove pattern and its uniqueness for forensic identification

Permanent Mandibular Second Molars

Oral pathology in forensic investigation

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