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A long-term study of transverse stability of maxillary teeth in patients with unilateral complete cleft lip and palate.
J Oral Rehabil. 1997 Sep; 24(9):658-65.JO

Abstract

The aim of this study was to investigate the long term post-treatment transverse stability of the maxillary dental arch in subjects with unilateral complete cleft lip and palate (UCLP) treated by the Harvold/Bøhn method of orthodontic expansion and prosthodontic retention. The treatment of 22 consecutive patients, primarily operated on during the period 1957-60, was completed at a mean age of 18.1 years by the provision of a fixed partial retention prosthesis across the cleft using the cleft side central incisor and canine only as abutment teeth. The cleft side lateral incisor was missing in each case. Dental casts were made at the time of abutment preparation and at six subsequent times with the final observation 13.5 years after treatment completion. Measurements of any shift in the transverse position of cleft side and non-cleft side canines, premolars and first molars were made on standardized photographs of the casts. A constructed anteroposterior palatal line served as 'midline' reference. A mean reduction of width at the final observation, as recorded from the palatal surface to the reference line, was for the cleft side canine: -0.4 mm, the premolar immediately distal to the prosthesis and the first molar: both -1.2 mm. The corresponding mean width reductions on the noncleft side were: canine -0.9 mm, premolar -1.2 mm, first molar -1.6 mm. The rate of movement towards the midline decreased linearly with In(time) for all variables (P < 0.02) but for the cleft side canine.

Authors+Show Affiliations

Department of Plastic Surgery, Rikshospitalet, Oslo, Norway.No affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

9357746

Citation

Ramstad, T, and T Jendal. "A Long-term Study of Transverse Stability of Maxillary Teeth in Patients With Unilateral Complete Cleft Lip and Palate." Journal of Oral Rehabilitation, vol. 24, no. 9, 1997, pp. 658-65.
Ramstad T, Jendal T. A long-term study of transverse stability of maxillary teeth in patients with unilateral complete cleft lip and palate. J Oral Rehabil. 1997;24(9):658-65.
Ramstad, T., & Jendal, T. (1997). A long-term study of transverse stability of maxillary teeth in patients with unilateral complete cleft lip and palate. Journal of Oral Rehabilitation, 24(9), 658-65.
Ramstad T, Jendal T. A Long-term Study of Transverse Stability of Maxillary Teeth in Patients With Unilateral Complete Cleft Lip and Palate. J Oral Rehabil. 1997;24(9):658-65. PubMed PMID: 9357746.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - A long-term study of transverse stability of maxillary teeth in patients with unilateral complete cleft lip and palate. AU - Ramstad,T, AU - Jendal,T, PY - 1997/11/14/pubmed PY - 1997/11/14/medline PY - 1997/11/14/entrez SP - 658 EP - 65 JF - Journal of oral rehabilitation JO - J Oral Rehabil VL - 24 IS - 9 N2 - The aim of this study was to investigate the long term post-treatment transverse stability of the maxillary dental arch in subjects with unilateral complete cleft lip and palate (UCLP) treated by the Harvold/Bøhn method of orthodontic expansion and prosthodontic retention. The treatment of 22 consecutive patients, primarily operated on during the period 1957-60, was completed at a mean age of 18.1 years by the provision of a fixed partial retention prosthesis across the cleft using the cleft side central incisor and canine only as abutment teeth. The cleft side lateral incisor was missing in each case. Dental casts were made at the time of abutment preparation and at six subsequent times with the final observation 13.5 years after treatment completion. Measurements of any shift in the transverse position of cleft side and non-cleft side canines, premolars and first molars were made on standardized photographs of the casts. A constructed anteroposterior palatal line served as 'midline' reference. A mean reduction of width at the final observation, as recorded from the palatal surface to the reference line, was for the cleft side canine: -0.4 mm, the premolar immediately distal to the prosthesis and the first molar: both -1.2 mm. The corresponding mean width reductions on the noncleft side were: canine -0.9 mm, premolar -1.2 mm, first molar -1.6 mm. The rate of movement towards the midline decreased linearly with In(time) for all variables (P < 0.02) but for the cleft side canine. SN - 0305-182X UR - https://www.unboundmedicine.com/medline/citation/9357746/A_long_term_study_of_transverse_stability_of_maxillary_teeth_in_patients_with_unilateral_complete_cleft_lip_and_palate_ L2 - https://onlinelibrary.wiley.com/resolve/openurl?genre=article&amp;sid=nlm:pubmed&amp;issn=0305-182X&amp;date=1997&amp;volume=24&amp;issue=9&amp;spage=658 DB - PRIME DP - Unbound Medicine ER -