Tags

Type your tag names separated by a space and hit enter

Craniofacial structure and soft tissue profile in patients with severe hypodontia.
Am J Orthod Dentofacial Orthop. 1995 Nov; 108(5):472-7.AJ

Abstract

This study compares craniofacial structure and soft tissue profile in persons with mild hypodontia (group I: 2 to 5 congenitally missing teeth, n = 43), moderate hypodontia (group II: 6 to 9 congenitally missing teeth, n = 15) and severe hypodontia (group III: 10 or more congenitally missing teeth, n = 29) with the structure of persons without hypodontia and with normal occlusion (n = 50). The mean age was about 12 years. In group I, the lower second premolars were the most frequently missing teeth, followed by the upper second premolars and the upper lateral incisors. The relative prevalence of missing second premolars decreased with increasing severity of hypodontia. No consistent pattern could be observed when more than five teeth were missing, indicating a different genetic mechanism than for mild hypodontia. A significant retroclination of the incisors and an increased interincisal angle were observed with increasing severity of hypodontia. This was accompanied by a reduction of lip protrusion, being most evident for the upper lip. Increasing numbers of missing teeth resulted also in a decrease in the mandibular plane angle and a reduction in the anterior lower facial height. Few differences in the skeletal parameters were observed. It was concluded that the typical dentofacial structure in persons with advanced hypodontia may be due to dental and functional compensation rather than to a different growth pattern.

Authors+Show Affiliations

Department of Orthodontics, Faculty of Dentistry, University of Oslo, Norway.No affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

7484966

Citation

Ogaard, B, and O Krogstad. "Craniofacial Structure and Soft Tissue Profile in Patients With Severe Hypodontia." American Journal of Orthodontics and Dentofacial Orthopedics : Official Publication of the American Association of Orthodontists, Its Constituent Societies, and the American Board of Orthodontics, vol. 108, no. 5, 1995, pp. 472-7.
Ogaard B, Krogstad O. Craniofacial structure and soft tissue profile in patients with severe hypodontia. Am J Orthod Dentofacial Orthop. 1995;108(5):472-7.
Ogaard, B., & Krogstad, O. (1995). Craniofacial structure and soft tissue profile in patients with severe hypodontia. American Journal of Orthodontics and Dentofacial Orthopedics : Official Publication of the American Association of Orthodontists, Its Constituent Societies, and the American Board of Orthodontics, 108(5), 472-7.
Ogaard B, Krogstad O. Craniofacial Structure and Soft Tissue Profile in Patients With Severe Hypodontia. Am J Orthod Dentofacial Orthop. 1995;108(5):472-7. PubMed PMID: 7484966.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Craniofacial structure and soft tissue profile in patients with severe hypodontia. AU - Ogaard,B, AU - Krogstad,O, PY - 1995/11/1/pubmed PY - 1995/11/1/medline PY - 1995/11/1/entrez SP - 472 EP - 7 JF - American journal of orthodontics and dentofacial orthopedics : official publication of the American Association of Orthodontists, its constituent societies, and the American Board of Orthodontics JO - Am J Orthod Dentofacial Orthop VL - 108 IS - 5 N2 - This study compares craniofacial structure and soft tissue profile in persons with mild hypodontia (group I: 2 to 5 congenitally missing teeth, n = 43), moderate hypodontia (group II: 6 to 9 congenitally missing teeth, n = 15) and severe hypodontia (group III: 10 or more congenitally missing teeth, n = 29) with the structure of persons without hypodontia and with normal occlusion (n = 50). The mean age was about 12 years. In group I, the lower second premolars were the most frequently missing teeth, followed by the upper second premolars and the upper lateral incisors. The relative prevalence of missing second premolars decreased with increasing severity of hypodontia. No consistent pattern could be observed when more than five teeth were missing, indicating a different genetic mechanism than for mild hypodontia. A significant retroclination of the incisors and an increased interincisal angle were observed with increasing severity of hypodontia. This was accompanied by a reduction of lip protrusion, being most evident for the upper lip. Increasing numbers of missing teeth resulted also in a decrease in the mandibular plane angle and a reduction in the anterior lower facial height. Few differences in the skeletal parameters were observed. It was concluded that the typical dentofacial structure in persons with advanced hypodontia may be due to dental and functional compensation rather than to a different growth pattern. SN - 0889-5406 UR - https://www.unboundmedicine.com/medline/citation/7484966/Craniofacial_structure_and_soft_tissue_profile_in_patients_with_severe_hypodontia_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0889-5406(95)70047-1 DB - PRIME DP - Unbound Medicine ER -