Journal article
Digital radiographic evaluation of the midpalatal suture in patients submitted to rapid maxillary expansion
Indian journal of dental research, Vol.24(1), pp.76-80
01/2013
DOI: 10.4103/0970-9290.114960
PMID: 23852237
Abstract
Aims: To analyze the density of the midpalatal suture by means of digital radiographs three months after retention to evaluate if this period of retention is really sufficient for bone repair.
Materials and methods: This prospective study consisted of 31 patients (11 girls and 20 boys) in the mixed or permanent dentition stage, treated using a tooth-tissue borne expanders (Haas). Occlusal digital radiographs were taken at three stages: prior to rapid maxillary expansion (Stage I); immediately after desired maxillary expansion (Stage II); and after three months of retention (Stage III). Radiographs were taken on a dental X-ray machine, set at 70 kVp and 7 mA with an exposure time of 0.04 s. A phosphor storage plate system, imaging plate size n. 2 (35 × 45 × 1.6 mm), was used. Three regions (A, B and C) measured 0.02 mm² were selected for optical density analysis. The difference between the measurements was evaluated with the paired t-test.
Results: The optical density was reduced at Stages II and III compared with Stage I. Between-stage comparison showed statistically significant changes for all variables (P < 0.05), with the highest mean optical density at Stage I and the lowest at Stage II, in all groups. Actually, there was an increase in optical density between Stages II and III, but they are reduced compared with Stage I.
Conclusion: The results strongly suggest that bone formation did not occur as expected, and that a longer retention period for bone repair may be necessary.
Details
- Title: Subtitle
- Digital radiographic evaluation of the midpalatal suture in patients submitted to rapid maxillary expansion
- Creators
- Maria De Fátima De Melo - Department of Dentomaxillofacial Radiology, School of Dentistry, Federal University of Sergipe, BrazilSaulo Leonardo Sousa Melo - Universidade Federal de SergipeTiago Gorgulho Zanet - Universidade Federal de SergipeMlene Fenyo-Pereira - Department of Dentomaxillofacial Radiology, School of Dentistry, Federal University of Sergipe, Brazil
- Resource Type
- Journal article
- Publication Details
- Indian journal of dental research, Vol.24(1), pp.76-80
- DOI
- 10.4103/0970-9290.114960
- PMID
- 23852237
- NLM abbreviation
- Indian J Dent Res
- ISSN
- 0970-9290
- eISSN
- 1998-3603
- Number of pages
- 5
- Language
- English
- Date published
- 01/2013
- Academic Unit
- Radiology; Oral Pathology, Radiology and Medicine
- Record Identifier
- 9985244561702771
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