title: Morphological and Dimensional Characteristics of Dental Arch among Tribal and Non-tribal Population of Central India: A Comparative Study.
abstract: BACKGROUND
  Differences in the dental arch among Bhil Aboriginals were investigated and compared with non-tribal individuals residing in a tribal zone of Central India. Plaster models (120) were made with the help of alginate impression of tribal adults as well as non-tribal adults residing in the same area. The supposition as aboriginals being primitive due to dietary practices maxillary arch size and mandibular arch size is distended in comparison to the non-tribal population as adaptation of soft refined diet has disrupted the growth of the jaws. Hence, an attempt was made to evaluate the arch widths of tribal population and to associate it with non-tribe population in the same area of Central India.
  
  
  METHODS
  Difference in morphology and dimension of the maxillary and mandibular arches was aimed at Bhil tribes as well as non-tribal residents of tribe rich zone of Central India. The study was steered amid 120 individuals both tribal and non-tribe equally around 60 each through a well-organized out-reach program intermittently. Study models were made of dental arches of all participants. All measurements of the arch dimension were patent on the study casts using an electronic digital sliding caliper. Pair t-test was applied by using SPSS software version-19.0.
  
  
  RESULTS
  In the maxillary arch, on appraisal the non-tribal and Bhil tribe's subjects, it showed a statistically significant difference in inter-incisor width (2.95 mm), inter-canine width (2.60 mm), arch depth (3.25 mm). While inter premolar width (0.20 mm) and inter molar width (0.80 mm) anterior arch length (0.60 mm), and posterior arch length (0.10 mm) showed statistically not significant difference between non-tribal population and Bhil tribe subjects. In the mandibular arch, it showed a statistically significant difference in inter-canine width (1.00 mm). Although, inter-incisor width (0.72 mm), inter-molar width (0.80 mm), arch depth (0.90 mm), anterior arch length (0.30 mm), posterior arch length (0.35 mm), and curve of Spee (0.13 mm) showed statistically not significant difference between general population and Bhil tribe subjects.
  
  
  CONCLUSIONS
  When associated non-tribal population to Bhil tribes subjects, for the morphological and dimensional characteristics of dental arches Bhil tribe subjects exhibited: A narrower and shorter maxilla; reduced mandible size; smaller incisor widths for the maxillary and mandibular arches.
authors: Professor, Department of Prosthodontics, Peoples Dental Academy, Bhopal, Madhya Pradesh, India.
authors: Naveen S
authors: NS
authors: Yadav
authors: Professor & Head, Department of Public Health Dentistry, Peoples Dental Academy, Bhopal, Madhya Pradesh, India.
authors: Vrinda
authors: V
authors: Saxena
authors: Associate Professor, Department of Dental Material, College of Applied Medical Science, King Khalid University, Abha, Saudi Arabia.
authors: Rajesh
authors: R
authors: Vyas
authors: Reader, Department of Conservative Dentistry & Endodontics, Teertankar Mahaveer University, Delhi Road, Moradabad, Uttar Pradesh, India.
authors: Rohit
authors: R
authors: Sharma
authors: Senior Lecturer, Department of Public Health Dentistry, Peoples Dental Academy, Bhopal, India.
authors: Vijayta
authors: V
authors: Sharva
authors: PG Student, Department of Public Health Dentistry, Peoples College of Dental Sciences, Bhopal, India.
authors: Ashish
authors: A
authors: Dwivedi
authors: Reader, Department of Public Health Dentistry, Peoples Dental Academy, Bhopal, India.
authors: Manish
authors: M
authors: Jain
keywords: Arch depth; bhil tribe; dental arch
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