Occurrence of torus palatinus and mandibularis among women of different ethnic groups.
OBJECTIVE
To detect the presence of tori in women of different ethnic groups residing in the metropolitan area of Washington, D.C., USA.


METHODS
448 females between the ages of 18-88 years participated in the study. There were 302 African Americans, 62 Caucasians, 43 Hispanics, 36 Asians, and 5 Native Americans.


RESULTS
Tori were detected in 107 African Americans (35.4%), 20 Caucasians (32.3%), 13 Hispanics (30.2%), 14 Asians (38.9%), and 1 of the 5 Native American (20%), (P = 0.328). Torus palatinus were found in 69.7% of women from all ethnic groups (P = 0.107). Slightly higher percentage was seen in the Hispanics, then the African Americans, with the least in the Caucasians. Torus mandibularis were found only in 38.7% of all subjects (P< 0.05), were more common among Caucasians, and were usually bilateral. The presence of both tori was only detected in 8.4% of the participants. There was no relationship between age and the presence of torus mandibularis (r = 0.074) or palatinus (r = 0.008).
Chohayeb
A A
AA
Howard University, Washington DC, USA.
Volpe
A R
AR
D000293:Adolescent; D000328:Adult; D001741:Black or African American / Q000706:statistics & numerical data; D000367:Age Factors; D000368:Aged; D000369:Aged, 80 and over; D001213:Asian / Q000706:statistics & numerical data; D044466:Asian People; D044383:Black People; D016009:Chi-Square Distribution; D016001:Confidence Intervals; D004219:District of Columbia / Q000453:epidemiology; D005006:Ethnicity / Q000706:statistics & numerical data; D005096:Exostoses / Q000453:epidemiology / Q000208:ethnology*; D005260:Female; D006630:Hispanic or Latino / Q000706:statistics & numerical data; D006801:Humans; D007198:Indians, North American / Q000706:statistics & numerical data; D008336:Mandibular Diseases / Q000453:epidemiology / Q000208:ethnology*; D008439:Maxillary Diseases / Q000453:epidemiology / Q000208:ethnology*; D008875:Middle Aged; D010159:Palate / Q000473:pathology*; D018709:Statistics, Nonparametric; D044465:White People / Q000706:statistics & numerical data