Measurements of Maxillary Area in Repair of Unilateral Clefts

Objective This study investigated the relationship between maxillary dental arch form and distribution of postsurgical scar tissue on previously denuded bone in isolated cleft palate patients. Method The palatal blood flow of 21 Japanese isolated cleft palate patients (6 males, 15 females) was examined by laser doppler flowmetry to determine the scar tissue areas. All had undergone pushback operations for palatal repair at around 18 months of age. Tissue blood flow was examined at a time ranging from 11 years, 5 months to 19 years, 9 months of age. To evaluate the maxillary dental arch form, dental casts obtained at the start of orthodontic treatment (a mean age of 8 years, 4 months) were analyzed. Results/Conclusions Scar tissue distribution in the 21 cases was classified into five types. Characteristic features in the maxillary dental arch form were found in each of the five types according to the extent of the scar tissue. It was evident that the severity of the maxillary dental arch constriction was closely related to the scar tissue distribution on palates.

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Dentoalveolar Growth Inhibition Induced by Bone Denudation on Palates: A Study of Two Isolated Cleft Palates with Asymmetric Scar Tissue Distribution

Ishikawa

Iwasaki

Tsukada

et al. 1999

The Cleft Palate Craniofacial Journal

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Objective: This report presents two cases of isolated cleft palate with asymmetric distribution of postsurgical scar tissue determined by laser Doppler flowmetry. To determine the effect of mucoperiosteal denudation of the bone on maxillary alveolar growth, the analysis of dentoalveolar structures compared the affected side to the unaffected side of each case. Method: Two Japanese girls with isolated cleft palates were examined. Both subjects had undergone pushback operations (a modified version of the procedure of Wardill) for palatal repair at 18 months of age. Palatal blood flow was examined by laser Doppler flowmetry when the girls were 12 years old to determine the extent of postsurgical scar tissue over the denuded bone. To analyze the maxillary dentoalveolar structures three dimensionally, the whole surface of the upper dental cast was measured and recorded by an optical measuring device when the girls were 7 years old. Results and Conclusions: Analysis via flowmetry showed that the palatal scar tissue area was limited to the anterior tooth region on the right (unaffected) side but extended posteriorly to the premolar region on the left (affected) side in both subjects. The two girls had similar dentoalveolar structures, with the dental and alveolar arches deflected lingually at the deciduous molar area on the affected side. There were no differences in the buccolingual inclination of deciduous molars or in the vertical growth of the alveolar processes between the affected and unaffected sides. In both girls, bone denudation in the premolar region appeared to result in less than 3 mm of displacement of the teeth palatally, with no change in lingual inclination. Any effects of scar tissue on the vertical development of the alveolus were not substantiated.

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Measurements of Maxillary Area in Repair of Unilateral Clefts

Cited by 4 publications

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Scar Tissue Distribution on Palates and its Relation to Maxillary Dental Arch Form

Scar Tissue Distribution on Palates and its Relation to Maxillary Dental Arch Form

Scar Tissue Distribution on Palates and its Relation to Maxillary Dental Arch Form

Dentoalveolar Growth Inhibition Induced by Bone Denudation on Palates: A Study of Two Isolated Cleft Palates with Asymmetric Scar Tissue Distribution

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