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http://dx.doi.org/10.5933/JKAPD.2017.44.1.11

Effects of Fused Primary Teeth on the Permanent Dentition  

Seo, YeJin (Department of Pediatric Dentistry, School of Dentistry, Kyungpook National University)
Kim, Youngjin (Department of Pediatric Dentistry, School of Dentistry, Kyungpook National University)
Kim, Hyunjung (Department of Pediatric Dentistry, School of Dentistry, Kyungpook National University)
Nam, Soonhyeun (Department of Pediatric Dentistry, School of Dentistry, Kyungpook National University)
Publication Information
Journal of the korean academy of Pediatric Dentistry / v.44, no.1, 2017 , pp. 11-19 More about this Journal
Abstract
The purpose of the study was to investigate the distribution of primary fused teeth and identify the correlation between primary fused teeth and their effect on permanent dentition. 2575 children between the age of 4 and 6 in Kyungpook National University Hospital from January 2009 to August 2015 were investigated. A total of 84 children (46 boys and 38 girls) had fused teeth. 14 of these children had two fused teeth. Prevalence of caries involvement was in 65% of maxilla and 6% of mandible. Prevalence of permanent successors missing was 86.3% in the cases involving maxillary central and lateral incisor, 70% in mandibular lateral incisor and cuspid, 11.7% in mandibular central and lateral incisor. 27 of 84 children (32.1%) had supernumerary teeth. The highest prevalence rate is seen in the cases involving maxillary central and lateral incisor. Delayed permanent tooth eruption was only observed in the maxilla because of developing supernumerary tooth. Early diagnosis of fused tooth in the primary dentition can allow the dentist to make treatment plan at the appropriate time in accordance with the tooth arrangement and tooth development.
Keywords
Fused teeth; Permanent successors missing; Developing supernumerary tooth; Delayed eruption;
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Times Cited By KSCI : 5  (Citation Analysis)
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1 Park CJ, Lee SR : A radiographic study of fused and germinated tooth. Korean J Oral Maxillofac Radiol, 20:79-89, 1990.
2 Sivolella S, Bressan E, Berengo M, et al. : Extraoral endodontic treatment, odontotomy and intentional replantation of a double maxillary lateral permanent incisor: case report and 6-year follow-up. Int Endod J, 41:538-546, 2008.   DOI
3 Aguilo L, Gandia JL, Cibrian R, Catala M : Primary double teeth. A retrospective clinical study of their morphological characteristics and associated anomalies. Int J Paediatr Dent, 9:175-183, 1999.
4 Tewari N, Pandey RK : Bilateral fusion in primary mandibular teeth: a report of two cases. J Indian Soc Pedod Prev Dent, 29:50-52, 2011.   DOI
5 Chalakkal P, Thomas AM : Bilateral fusion of mandibular primary teeth. J Indian Soc Pedod Prev Dent, 27:108-110, 2009.   DOI
6 Yang KH, Lim HJ, Choi NK, Kim SM : The prevalence of double teeth and congenital missing teeth in primary dentition and their correlation with the permanent dentition. J Korean Acad Pediatr Dent, 34:447-453, 2007.
7 Kim MN, Kim YJ, Lee SH, et al. : Double teeth in maxillary permanent incisors: case reports. J Korean Acad Pediatr Dent, 36:119-125, 2009.
8 Gorlin RT : Thomas's oral pathology, 1st ed., Mosby, 112-121, 1970.
9 Shafer WG, Hine MK, Levy BM : A Textbook of Oral Pathology, 4th ed., Philadelphia Saunders, 38, 1983.
10 Lowell RJ, Soloman Al : Fused teeth. J Am Dent Assoc, 68:762, 1964.   DOI
11 Brook AH, Winter GB : Double teeth. A retrospective study of 'geminated'and 'fused'teeth in children. Br dent J, 129:123-130, 1970.   DOI
12 Ravn JJ : Aplasia, supernumerary teeth and fused teeth in the primary dentition. An epidemiologic study. Scand J Dent Res, 79:1-6, 1971.
13 Park CH, Joeng TS, Kim S : A survey on the caries prevalence of preschool children in a small city. J Korean Acad Pediatr Dent, 28:300-309, 2001.
14 Yuen SW, Chan JC, Wei SH : Double primary teeth and their relationship with the permanent successors: a radiographic study of 376 cases. Pediatr Dent, 9:42-48, 1987.
15 Zengin AZ, Celenk P, Gunduz K, Canger M : Primary double teeth and their effect on permanent successors. Eur J Paediatr Dent, 15:309-312, 2014.   DOI
16 Duncan WK, Helpin ML : Bilateral fusion and gemination : a literature analysis and case report. Oral Surg Oral Med Oral Pathol, 64:82-87, 1987.   DOI
17 Tsujino K, Yonezu T, Shintani S : Effects of different combinations of fused primary teeth on eruption of the permanent successors. Pediatr Dent, 35:64-67, 2013.
18 Oyasato Y, Fukutani S, Moriya Y, et al. : Clinical observation about anomaly of teeth in childhood. Jpn J Ped Dent, 15:364-370, 1977.
19 Cho SY, So FH, Lee CK, Chan JC : Late forming supernumerary tooth in the premaxilla: a case report. Int J Paediatr Dent, 10:335-340, 2000.
20 Aguilo L, Gandia JL : Late development of maxillary supernumerary tooth: a case report. J Clin Pediatr Dent, 22:41-44, 1997.
21 Kim SH, Kim YG, Kim HJ, Nam SH : Epidemiologic survey on failed eruption of mandibular first molar. J Korean Acad Pediatr Dent, 43:51-59, 2016.   DOI
22 Jo WS, Lee NY, Lee SH : A statistical study on characteristics and treatment of child and adolescent patients with tooth impaction. J Korean Acad Pediatr Dent, 41:306-313, 2014.   DOI
23 Torres JN, Caracas HC, Bolognese AM, Torres S : Conservative approach for a patient with extreme delay in maxillary lateral incisor development. Am J of Orthod Dentofacial Orthop, 141:773-782, 2012.   DOI
24 Rajashekhara BS, Dave B, Sujan SG, et al. : Bilateral fusion of primary mandibular lateral incisors and canines: A report of a rare case. Rev Odonto Cienc, 25:427-429, 2010.   DOI
25 Korean Acad Pediatr Dent : Dentistry for the child and adolescent, 5th ed., Dental Wisdom Yenang INC, 107-122, 290, 2014.
26 Guimaraes Cabral LA, Firoozmand LM, Dias Almeida J : Double teeth in primary dentition: report of two clinical cases. Med Oral Patol Oral Cir Bucal, 13:77-80, 2008.
27 Sekerci AE, Sisman Y, Ertas H, et al. : Clinical and radiographic evaluation and comparison of six cases of fusion involving the primary dentition. J Dent Child, 79:34-39, 2012.
28 Ra JY, Kim DE, Lee KH : Effect of primary double teeth on the development of permanent successors. J Korean Acad Pediatr Dent, 31:136-143, 2004.
29 Wu CW, Lin YT, Lin YT : Double primary teeth in children under 17 years old and their correlation with permanent successors. Chang Gung Med J, 33:188-193, 2010.
30 Kobayashi H, Taguchi Y, Noda T : Eruption disturbances of maxillary permanent central incisors associated with anomalous adjacent permanent lateral incisors. Int J Paediatr Dent, 9:277-284, 1999.   DOI
31 Ju JH, Lee KH, Kim DE, Jeong YN : The prevalence of double teeth and congenital missing teeth in preschool children of Iksan city. J Korean Acad Pediatr Dent, 30:210-216, 2003.
32 Tomizawa M, Shimizu A, Hayashi S, Noda T : Bilateral maxillary fused primary incisors accompanied by succedaneous supernumerary teeth: report of a case. Int J Paediatr Dent, 12:223-227, 2002.   DOI