Prevalence of the number of cusps and occlusal groove patterns of the mandibular molars in a Saudi Arabian population

Felemban, Nayef H.; Manjunatha, Bhari Sharanesha

doi:10.1016/j.jflm.2017.05.013

Cited by 10 publications

(9 citation statements)

References 11 publications

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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: 57%

“…The results of this study are comparable to other population based researches conducted in Iran, India and Saudi Arabia with similar results. 8,9,29 The four cuspal variety of mandibular second molars is characterized by the typical absence of the distal cusp owing to absence of growth of lobes or centres of calcification emanating from lack the inner enamel epithelium during tooth development. 21,30 Five cuspal variant of mandibular second molar was observed in highest number in Singaporean, main land Chinese & Alaskan Eskimo population, 5,31,32 which is contrary to the present study that showed only 4.5% of the total sample with five cusps.…”

Section: Figure-1 Frequency Distribution Of Occlusal Characteristicsmentioning

confidence: 99%

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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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Section: Figure-1 Frequency Distribution Of Occlusal Characteristicssupporting

confidence: 57%

Section: Figure-1 Frequency Distribution Of Occlusal Characteristicsmentioning

confidence: 99%

Permanent Mandibular Second Molars

Ansari

Shaikh

Zaidi

et al. 2018

TPMJ

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“…In past, various studies have been done to relate the prevalence of dental anatomy with different factors. Variations in the size, number of cusps, and groove pattern, have been observed in the mandibular molars of different populations 25 .…”

Section: Discussionmentioning

confidence: 99%

Occlusal Morphology of Primary Molars in Anganwadi Children, Faridabad

2020

IJFMT

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Introduction -Forensic odontology helps in identifying any suspect involved in crime, in accidental cases, in disaster victim identifications. Teeth shows variation in its anatomy as it has a very strong hereditary component. Variations in occlusal morphology of teeth include differences in the number of cusps and the fissure pattern. So, it is important to know the occlusal morphology of teeth in Forensic odontology.Materials and Method -A descriptive study was conducted to evaluate the cusp and groove pattern in primary second molar of 3-6 year old children from Anganwadis of Faridabad. Hellman and Gregory's criteria for groove pattern were used to know the buccal groove pattern and cusps of primary molar. Data were analyzed with SPSS statistics software 23.0 version.Result -The predominant groove pattern was "Y" (73.34%). Majority of the participants has 5 cusps in primary second molar. 67.45% of the study participants had 5Y occlusal morphology of primary mandibular second molar and it is mostly seen in male children. Conclusion -This occlusal configuration will further help in various genetic, anthropological and forensic investigations. Furthermore, knowing common variations in dental anatomy and morphology about each individual tooth can help in providing dental treatments such as restorative, endodontic and orthodontic treatments

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“…The other studies done related to occlusal morphology in various populations are as follows: (a) number of cusps and occlusal groove patterns of the permanent mandibular first and second molar in a Saudi population, (b) +4 occlusal form of mandibular second molars in Iranian adolescents, (c) cusp number and groove patterns of mandibular molars in Alaskan Eskimos, and (d) Associations between Carabelli trait and cusp areas in human permanent maxillary first molars in Australians of European descent. [ 27 28 29 30 31 ] Other occlusal morphologic malformations exist in human population include talon cusp and Leong's premolar. [ 32 33 ]…”

Section: Dentificationmentioning

confidence: 99%

Oral pathology in forensic investigation

Shamim

2018

J Int Soc Prevent Communit Dent

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Prevalence of the number of cusps and occlusal groove patterns of the mandibular molars in a Saudi Arabian population

Cited by 10 publications

References 11 publications

Permanent Mandibular Second Molars

Permanent Mandibular Second Molars

Occlusal Morphology of Primary Molars in Anganwadi Children, Faridabad

Oral pathology in forensic investigation

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