Otuyemi O D, Ugboko V I, Ndukwe K C, Adekoya-Sofowora C A
Faculty of Dentistry, College of Health Sciences, Obafemi Awolowo University, Ile-Ife, Nigeria.
Int Dent J. 1997 Oct;47(5):266-70. doi: 10.1002/j.1875-595x.1997.tb00787.x.
The eruption pattern of third molar amongst 1071 rural Nigerians (523 males and 548 females) aged 11-21 years was assessed. The earliest age at which the third molar erupted for males and females was 14 and 13 years respectively with females significantly ahead of males (P < 0.01). A full compliment of erupted third molars was recorded at age 14 years in 1.1 per cent of the population. However, the mean age for the eruption of 1, 2, or 3 and all third molars were 16.58 and 17.50 years respectively. Whilst third molar-eruption was significantly earlier in the mandible, no right-left side differences were found. Problems often associated with the erupting third molars are likely to be seen earlier in young rural Nigerians than in the western countries.
对1071名年龄在11至21岁的尼日利亚农村居民（523名男性和548名女性）的第三磨牙萌出模式进行了评估。男性和女性第三磨牙最早萌出年龄分别为14岁和13岁，女性明显早于男性（P<0.01）。在14岁时，1.1%的人群记录到第三磨牙完全萌出。然而，1颗、2颗或3颗以及所有第三磨牙萌出的平均年龄分别为16.58岁和17.50岁。虽然第三磨牙在下颌骨的萌出明显更早，但未发现左右侧差异。与第三磨牙萌出相关的问题在年轻的尼日利亚农村居民中可能比在西方国家出现得更早。
