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Patterns of bilateral agenesis of maxillary third molars and agenesis of other teeth.
Odontology. 2016 Jan; 104(1):98-104.O

Abstract

The purpose of this study was to investigate the patterns of bilateral agenesis of maxillary third molars and other tooth agenesis in Japanese orthodontic patients. A group of 262 subjects with bilateral agenesis of maxillary third molars (group A) was divided into three subgroups: group 1A consisting of 114 subjects without agenesis of mandibular third molars; group 2A, 31 subjects with unilateral agenesis of mandibular third molars; and group 3A, 117 subjects with agenesis of all third molars. As controls, 926 other subjects without third molar agenesis were selected (group C). Panoramic radiographs were mainly used to examine for tooth agenesis. The Chi square test and odds ratio were used to make statistical comparisons. The prevalence rates of agenesis of maxillary lateral incisors, mandibular incisors and maxillary and mandibular second premolars, and bilateral agenesis of maxillary lateral incisors and second premolars were significantly higher in any one of the third molar agenesis groups than in the control group. Characteristically, no significant increase in occurrence of bilateral agenesis of mandibular second premolars was demonstrated by the subjects with bilateral agenesis of maxillary third molars. Irrespective of whether unilateral or bilateral agenesis of mandibular third molars is present or not, the Japanese orthodontic patients with bilateral agenesis of maxillary third molars exhibited a significantly increased occurrence of unilateral or bilateral agenesis of maxillary lateral incisors, mandibular incisors and maxillary and mandibular second premolars, except for bilateral agenesis of mandibular incisors and second premolars.

Authors+Show Affiliations

Pediatric Dentistry, The Nippon Dental University Niigata Hospital, 1-8 Hamaura-cho, Chuo-ku, Niigata, 951-8580, Japan.Orthodontic Dentistry, The Nippon Dental University Niigata Hospital, 1-8 Hamaura-cho, Chuo-ku, Niigata, 951-8580, Japan.Pediatric Dentistry, The Nippon Dental University Niigata Hospital, 1-8 Hamaura-cho, Chuo-ku, Niigata, 951-8580, Japan.Orthodontic Dentistry, The Nippon Dental University Niigata Hospital, 1-8 Hamaura-cho, Chuo-ku, Niigata, 951-8580, Japan.Department of Pediatric Dentistry, The Nippon Dental University School of Life Dentistry at Niigata, 1-8 Hamaura-cho, Chuo-ku, Niigata, 951-8580, Japan.Orthodontic Dentistry, The Nippon Dental University Niigata Hospital, 1-8 Hamaura-cho, Chuo-ku, Niigata, 951-8580, Japan. endoto@ngt.ndu.ac.jp.Department of Pediatric Dentistry, The Nippon Dental University School of Life Dentistry at Niigata, 1-8 Hamaura-cho, Chuo-ku, Niigata, 951-8580, Japan.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

25636272

Citation

Sanpei, Sugako, et al. "Patterns of Bilateral Agenesis of Maxillary Third Molars and Agenesis of Other Teeth." Odontology, vol. 104, no. 1, 2016, pp. 98-104.
Sanpei S, Ishida R, Sanpei S, et al. Patterns of bilateral agenesis of maxillary third molars and agenesis of other teeth. Odontology. 2016;104(1):98-104.
Sanpei, S., Ishida, R., Sanpei, S., Endo, S., Tanaka, S., Endo, T., & Sekimoto, T. (2016). Patterns of bilateral agenesis of maxillary third molars and agenesis of other teeth. Odontology, 104(1), 98-104. https://doi.org/10.1007/s10266-014-0185-y
Sanpei S, et al. Patterns of Bilateral Agenesis of Maxillary Third Molars and Agenesis of Other Teeth. Odontology. 2016;104(1):98-104. PubMed PMID: 25636272.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Patterns of bilateral agenesis of maxillary third molars and agenesis of other teeth. AU - Sanpei,Sugako, AU - Ishida,Rieko, AU - Sanpei,Shinya, AU - Endo,Saori, AU - Tanaka,Satoshi, AU - Endo,Toshiya, AU - Sekimoto,Tsuneo, Y1 - 2015/01/31/ PY - 2014/02/13/received PY - 2014/11/12/accepted PY - 2015/2/1/entrez PY - 2015/2/1/pubmed PY - 2017/6/2/medline KW - Bilateral agenesis KW - Bilateral agenesis of maxillary third molars KW - Incisor agenesis KW - Second premolar agenesis SP - 98 EP - 104 JF - Odontology JO - Odontology VL - 104 IS - 1 N2 - The purpose of this study was to investigate the patterns of bilateral agenesis of maxillary third molars and other tooth agenesis in Japanese orthodontic patients. A group of 262 subjects with bilateral agenesis of maxillary third molars (group A) was divided into three subgroups: group 1A consisting of 114 subjects without agenesis of mandibular third molars; group 2A, 31 subjects with unilateral agenesis of mandibular third molars; and group 3A, 117 subjects with agenesis of all third molars. As controls, 926 other subjects without third molar agenesis were selected (group C). Panoramic radiographs were mainly used to examine for tooth agenesis. The Chi square test and odds ratio were used to make statistical comparisons. The prevalence rates of agenesis of maxillary lateral incisors, mandibular incisors and maxillary and mandibular second premolars, and bilateral agenesis of maxillary lateral incisors and second premolars were significantly higher in any one of the third molar agenesis groups than in the control group. Characteristically, no significant increase in occurrence of bilateral agenesis of mandibular second premolars was demonstrated by the subjects with bilateral agenesis of maxillary third molars. Irrespective of whether unilateral or bilateral agenesis of mandibular third molars is present or not, the Japanese orthodontic patients with bilateral agenesis of maxillary third molars exhibited a significantly increased occurrence of unilateral or bilateral agenesis of maxillary lateral incisors, mandibular incisors and maxillary and mandibular second premolars, except for bilateral agenesis of mandibular incisors and second premolars. SN - 1618-1255 UR - https://www.unboundmedicine.com/medline/citation/25636272/Patterns_of_bilateral_agenesis_of_maxillary_third_molars_and_agenesis_of_other_teeth_ L2 - https://dx.doi.org/10.1007/s10266-014-0185-y DB - PRIME DP - Unbound Medicine ER -