JNDA Vol. 7 No. 1 (April 2005) |
Measurement of Mesio-Distal Tooth Diameter of Nepalese Permanent Dentition |
Dr. Rabindra Man Shrestha |
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Abstract |
The study determines the mesio-distal tooth diameter of 100 adult Nepalese subjects aged 17-32 years with equal female to male ratio. The samples were selected according to the inclusion criteria of normal occlusion with full complement of permanent teeth, Class I occlusion, symmetrical dental arch, proportional maxilla-mandibular relationship and acceptable facial profile. The measurement of mesio-distal crown diameter followed the method of Moorrees et al.3Measurements were done on dried dental stone cast using standardized Boley gauze (0.1 mm accuracy). Tooth size measurement revealed significant differences between the right and left maxillary first molars, maxillary second molars, mandibular central incisors, and mandibular lateral incisors, which were significantly wider on right side. According to the study, mean dimension of all teeth were wider in Nepalese males compared to the females. Average maxillary central incisor, maxillary canine, maxillary first molar, mandibular lateral incisor, mandibular canine, and mandibular first molar were significantly wider in male subjects. All average crown diameters of the Nepalese females were lesser than those of the Caucasian females except for the maxillary lateral incisor and mandibular canine. Maxillary central incisor, second premolar, and second molar were significantly wider in Caucasian females. All average crown diameters in Nepalese males were significantly lesser than those of the Caucasian males except for maxillary lateral incisors. |