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DOI: 10.4103/1305-7456.156850
Hypodontia prevalence and distribution pattern in a group of Qatari orthodontic and pediatric patients: A retrospective study
Publication History
Publication Date:
04 September 2019 (online)
ABSTRACT
Objectives: The aim of this study was to investigate the prevalence and distribution of hypodontia in the permanent teeth among a group of the Qatari sample and to compare the present results with findings from other populations. Materials and Methods: Records of 1269 Qatari patients (674 females; mean age 11.8 ± 2.3 and 595 males; mean age 11.4 ± 2.2) which included panoramic radiographs were examined to identify hypodontia. All permanent teeth were investigated except third molars. Results: The prevalence of hypodontia was 6.2% (females 8% and males 4.2%; P < 0.05). The majority of patients had one or two missing teeth. There were no significant differences between right and left sides for any particular tooth. The most frequently missing teeth were maxillary lateral incisors (36.2%), followed by mandibular second premolar (32.6%) and maxillary second premolar (20.2%). Hypodontia was more commonly found unilaterally than bilaterally (63.2% and 44.3%; respectively). Conclusions: The prevalence of hypodontia in a group of the Qatari population was within the average value of the majority of published studies in the literature. Hypodontia was significantly more prevalent in females. Although less prevalent, considerable cases of bilateral missing were found in the present study, which necessitates the urgent need for intervention and multi-disciplinary team approach for management.
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Conflict of Interest
None declared
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REFERENCES
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- 8 Alvesalo L, Portin P. The inheritance pattern of missing, peg-shaped, and strongly mesio-distally reduced upper lateral incisors. Acta Odontol Scand 1969; 27: 563-75
- 9 Ahmad W, Brancolini V, ul Faiyaz MF, Lam H, ul Haque S, Haider M. et al. A locus for autosomal recessive hypodontia with associated dental anomalies maps to chromosome 16q12.1. Am J Hum Genet 1998; 62: 987-91
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- 12 Thesleff I, Nieminen P. Tooth morphogenesis and cell differentiation. Curr Opin Cell Biol 1996; 8: 844-50
- 13 al-Emran S. Prevalence of hypodontia and developmental malformation of permanent teeth in Saudi Arabian schoolchildren. Br J Orthod 1990; 17: 115-8
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- 15 Amini F, Rakhshan V, Babaei P. Prevalence and pattern of hypodontia in the permanent dentition of 3374 Iranian orthodontic patients. Dent Res J (Isfahan) 2012; 9: 245-50
- 16 Fekonja A. Hypodontia in orthodontically treated children. Eur J Orthod 2005; 27: 457-60
- 17 Sisman Y, Uysal T, Gelgor IE. Hypodontia. Does the prevalence and distribution pattern differ in orthodontic patients?. Eur J Dent 2007; 1: 167-73
- 18 Behr M, Proff P, Leitzmann M, Pretzel M, Handel G, Schmalz G. et al. Survey of congenitally missing teeth in orthodontic patients in Eastern Bavaria. Eur J Orthod 2011; 33: 32-6
- 19 Mallineni SK, Nuvvula S, Cheung A, Kunduru R. A comprehensive review of the literature and data analysis on hypo-hyperdontia. J Oral Sci 2014; 56: 295-302
- 20 Aslan BI, Akarslan ZZ. Teeth number anomalies in permanent dentition among non-syndromic dental patients. Coll Antropol 2013; 37: 115-20
- 21 Chung CJ, Han JH, Kim KH. The pattern and prevalence of hypodontia in Koreans. Oral Dis 2008; 14: 620-5
- 22 Silva MezaR. Radiographic assessment of congenitally missing teeth in orthodontic patients. Int J Paediatr Dent 2003; 13: 112-6
- 23 Karadas M, Celikoglu M, Akdag MS. Evaluation of tooth number anomalies in a subpopulation of the North-East of Turkey. Eur J Dent 2014; 8: 337-41
- 24 Wisth PJ, Thunold K, Böe OE. Frequency of hypodontia in relation to tooth size and dental arch width. Acta Odontol Scand 1974; 32: 201-6
Correspondence:
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REFERENCES
- 1 Hunstadbraten K. Hypodontia in the permanent dentition. ASDC J Dent Child 1973; 40: 115-7
- 2 Polder BJ, Van't HofMA, Van der Linden FP, Kuijpers-Jagtman AM. A meta-analysis of the prevalence of dental agenesis of permanent teeth. Community Dent Oral Epidemiol 2004; 32: 217-26
- 3 Frazier-Bowers SA, Guo DC, Cavender A, Xue L, Evans B, King T. et al. A novel mutation in human PAX9 causes molar oligodontia. J Dent Res 2002; 81: 129-33
- 4 Vastardis H. The genetics of human tooth agenesis: New discoveries for understanding dental anomalies. Am J Orthod Dentofacial Orthop 2000; 117: 650-6
- 5 Cakur B, Dagistan S, Miloglu O, Bilge M. Nonsyndromic oligodontia in permenant dentition: Three siblings. Internet J Dent Sci 2006; 3: 2
- 6 Vastardis H, Karimbux N, Guthua SW, Seidman JG, Seidman CE. A human MSX1 homeodomain missense mutation causes selective tooth agenesis. Nat Genet 1996; 13: 417-21
- 7 Neubüser A, Peters H, Balling R, Martin GR. Antagonistic interactions between FGF and BMP signaling pathways: A mechanism for positioning the sites of tooth formation. Cell 1997; 90: 247-55
- 8 Alvesalo L, Portin P. The inheritance pattern of missing, peg-shaped, and strongly mesio-distally reduced upper lateral incisors. Acta Odontol Scand 1969; 27: 563-75
- 9 Ahmad W, Brancolini V, ul Faiyaz MF, Lam H, ul Haque S, Haider M. et al. A locus for autosomal recessive hypodontia with associated dental anomalies maps to chromosome 16q12.1. Am J Hum Genet 1998; 62: 987-91
- 10 Erpenstein H, Pfeiffer RA. Sex-linked-dominant hereditary reduction in number of teeth. Humangenetik 1967; 4: 280-93
- 11 Khalaf K, Miskelly J, Voge E, Macfarlane TV. Prevalence of hypodontia and associated factors: A systematic review and meta-analysis. J Orthod 2014; 41: 299-316
- 12 Thesleff I, Nieminen P. Tooth morphogenesis and cell differentiation. Curr Opin Cell Biol 1996; 8: 844-50
- 13 al-Emran S. Prevalence of hypodontia and developmental malformation of permanent teeth in Saudi Arabian schoolchildren. Br J Orthod 1990; 17: 115-8
- 14 Albashaireh ZS, Khader YS. The prevalence and pattern of hypodontia of the permanent teeth and crown size and shape deformity affecting upper lateral incisors in a sample of Jordanian dental patients. Community Dent Health 2006; 23: 239-43
- 15 Amini F, Rakhshan V, Babaei P. Prevalence and pattern of hypodontia in the permanent dentition of 3374 Iranian orthodontic patients. Dent Res J (Isfahan) 2012; 9: 245-50
- 16 Fekonja A. Hypodontia in orthodontically treated children. Eur J Orthod 2005; 27: 457-60
- 17 Sisman Y, Uysal T, Gelgor IE. Hypodontia. Does the prevalence and distribution pattern differ in orthodontic patients?. Eur J Dent 2007; 1: 167-73
- 18 Behr M, Proff P, Leitzmann M, Pretzel M, Handel G, Schmalz G. et al. Survey of congenitally missing teeth in orthodontic patients in Eastern Bavaria. Eur J Orthod 2011; 33: 32-6
- 19 Mallineni SK, Nuvvula S, Cheung A, Kunduru R. A comprehensive review of the literature and data analysis on hypo-hyperdontia. J Oral Sci 2014; 56: 295-302
- 20 Aslan BI, Akarslan ZZ. Teeth number anomalies in permanent dentition among non-syndromic dental patients. Coll Antropol 2013; 37: 115-20
- 21 Chung CJ, Han JH, Kim KH. The pattern and prevalence of hypodontia in Koreans. Oral Dis 2008; 14: 620-5
- 22 Silva MezaR. Radiographic assessment of congenitally missing teeth in orthodontic patients. Int J Paediatr Dent 2003; 13: 112-6
- 23 Karadas M, Celikoglu M, Akdag MS. Evaluation of tooth number anomalies in a subpopulation of the North-East of Turkey. Eur J Dent 2014; 8: 337-41
- 24 Wisth PJ, Thunold K, Böe OE. Frequency of hypodontia in relation to tooth size and dental arch width. Acta Odontol Scand 1974; 32: 201-6