{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,23]],"date-time":"2026-03-23T11:56:01Z","timestamp":1774266961785,"version":"3.50.1"},"reference-count":47,"publisher":"The Angle Orthodontist (EH Angle Education & Research Foundation)","issue":"1","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2007,1,1]]},"abstract":"<jats:title>Abstract<\/jats:title>\n               <jats:p>Objective: To investigate the differences in the congenital missing teeth pattern in terms of tooth type (permanent maxillary lateral incisor [MLI] and maxillary second premolar [MSP]) and sidedness (cleft vs noncleft) between boys and girls in Korean unilateral cleft lip and alveolus (UCLA) and unilateral cleft lip and palate (UCLP) patients.<\/jats:p>\n               <jats:p>Materials and Methods: This study used the charts, models, radiographs, and intraoral photographs of 90 UCLA patients and 204 UCLP patients (ages 6 to 13 years). Binomial test, chi-square test, Fisher exact test, maximum likelihood analysis of variance, and the odds ratio were performed.<\/jats:p>\n               <jats:p>Results: According to the relationship between the congenital missing teeth pattern and the cleft type, the UCLP patients had 2.98 times more missing MLIs and 1.80 times more missing MSPs than did the UCLA patients. The MLI was congenitally missing more in boys than in girls, but the MSP showed the opposite tendency. Boys had a higher frequency of congenital missing MLIs and MSPs on the cleft side than did girls. However, on the noncleft side and both sides, girls had a higher frequency of congenital missing MLIs and MSPs than did boys. Results showed a gender-dominant pattern of congenital missing MLIs and MSPs.<\/jats:p>\n               <jats:p>Conclusion: These results suggest that gender and cleft type might affect the congenital missing teeth pattern in terms of tooth type and sidedness.<\/jats:p>","DOI":"10.2319\/113005-419r.1","type":"journal-article","created":{"date-parts":[[2007,5,9]],"date-time":"2007-05-09T17:28:50Z","timestamp":1178731730000},"page":"88-93","source":"Crossref","is-referenced-by-count":36,"title":["Congenital Missing Permanent Teeth in Korean Unilateral Cleft Lip and Alveolus and Unilateral Cleft Lip and Palate Patients"],"prefix":"10.2319","volume":"77","author":[{"given":"Seung-Hak","family":"Baek","sequence":"first","affiliation":[{"name":"aAssistant Professor, School of Dentistry, Dental Research Institute, Seoul National University, Department of Orthodontics, Seoul, South Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Na-Young","family":"Kim","sequence":"first","affiliation":[{"name":"bMS graduate student, School of Dentistry, Seoul National University, Department of Orthodontics, Seoul, South Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1164","reference":[{"key":"2020042117542032000_i0003-3219-077-01-0088-b1","doi-asserted-by":"crossref","first-page":"204","DOI":"10.1016\/0889-5406(86)90067-3","article-title":"Prevalence of tooth agenesis correlated with jaw relationship and dental crowding.","volume":"90","author":"Dermaut","year":"1986","journal-title":"Am J Orthod Dentofacial Orthop"},{"key":"2020042117542032000_i0003-3219-077-01-0088-b2","doi-asserted-by":"crossref","first-page":"650","DOI":"10.1016\/S0889-5406(00)70173-9","article-title":"The genetics of human tooth agenesis: new discoveries for understanding dental anomalies.","volume":"117","author":"Vastardis","year":"2000","journal-title":"Am J Orthod Dentofacial Orthop"},{"key":"2020042117542032000_i0003-3219-077-01-0088-b3","doi-asserted-by":"crossref","first-page":"1445","DOI":"10.1177\/00220345010800051201","article-title":"Characteristics of incisor-premolar hypodontia in families.","volume":"80","author":"Arte","year":"2001","journal-title":"J Dent Res"},{"key":"2020042117542032000_i0003-3219-077-01-0088-b4","first-page":"84","article-title":"Incidence of supernumerary and congenitally missing teeth.","volume":"10","author":"Byrd","year":"1943","journal-title":"J Dent Child"},{"key":"2020042117542032000_i0003-3219-077-01-0088-b5","first-page":"115","article-title":"Hypodontia in the permanent dentition.","volume":"40","author":"Hunstadbraten","year":"1973","journal-title":"ASDC J Dent Child"},{"key":"2020042117542032000_i0003-3219-077-01-0088-b6","article-title":"The Pattern and Frequency of Congenital Absence of Teeth [master's thesis].","author":"Brown"},{"key":"2020042117542032000_i0003-3219-077-01-0088-b7","first-page":"206","article-title":"Congenital dental anomalies occurring in 3,557 children.","volume":"23","author":"Clayton","year":"1956","journal-title":"J Dent Child"},{"key":"2020042117542032000_i0003-3219-077-01-0088-b8","first-page":"36","article-title":"The congenitally absent premolar problem.","volume":"28","author":"Valinoti","year":"1958","journal-title":"Angle Orthod"},{"key":"2020042117542032000_i0003-3219-077-01-0088-b9","first-page":"119","article-title":"Dental anomalies in cleft lip and palate patients.","volume":"64","author":"Olin","year":"1964","journal-title":"Angle Orthod"},{"key":"2020042117542032000_i0003-3219-077-01-0088-b10","first-page":"109","article-title":"Anomalies associated with hypodontia of the permanent lateral incisor and second premolar.","volume":"17","author":"Symons","year":"1993","journal-title":"J Clin Pediatr Dent"},{"key":"2020042117542032000_i0003-3219-077-01-0088-b11","doi-asserted-by":"crossref","first-page":"99","DOI":"10.1093\/ejo\/26.1.99","article-title":"Has hypodontia increased in Caucasians during the 20th century? A meta-analysis.","volume":"26","author":"Mattheeuws","year":"2004","journal-title":"Eur J Orthod"},{"key":"2020042117542032000_i0003-3219-077-01-0088-b12","doi-asserted-by":"crossref","first-page":"288","DOI":"10.1111\/j.1600-0528.1975.tb00326.x","article-title":"Variables and criteria in prevalence studies of dental anomalies of number, form and size.","volume":"3","author":"Brook","year":"1975","journal-title":"Community Dent Oral Epidemiol"},{"key":"2020042117542032000_i0003-3219-077-01-0088-b13","doi-asserted-by":"crossref","first-page":"749","DOI":"10.1016\/0002-9416(56)90043-4","article-title":"Evaluation of the dental problems in the cleft palate patients.","volume":"42","author":"Swanson","year":"1956","journal-title":"Am J Orthod"},{"key":"2020042117542032000_i0003-3219-077-01-0088-b14","first-page":"1","article-title":"Symmetry and combinations of hypodontia in non-cleft and cleft palate children.","volume":"96","author":"Ranta","year":"1988","journal-title":"Scand J Dent 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