Digital radiographic evaluation of the midpalatal suture in patients submitted to rapid maxillary expansion

Maria De Fátima De Melo, Saulo Sousa Melo, Tiago Gorgulho Zanet, Mlene Fenyo-Pereira

Research output: Contribution to journalArticle

4 Citations (Scopus)

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.

Original languageEnglish (US)
Pages (from-to)76-80
Number of pages5
JournalIndian Journal of Dental Research
Volume24
Issue number1
DOIs
StatePublished - Jan 1 2013
Externally publishedYes

Fingerprint

Palatal Expansion Technique
Sutures
Tooth
Tissue Expansion Devices
Mixed Dentition
Permanent Dentition
Bone and Bones
Osteogenesis
X-Rays
Prospective Studies

Keywords

  • Digital radiograph
  • new bone formation
  • rapid maxillary expansion

ASJC Scopus subject areas

  • Medicine(all)
  • Dentistry(all)

Cite this

Digital radiographic evaluation of the midpalatal suture in patients submitted to rapid maxillary expansion. / De Melo, Maria De Fátima; Sousa Melo, Saulo; Zanet, Tiago Gorgulho; Fenyo-Pereira, Mlene.

In: Indian Journal of Dental Research, Vol. 24, No. 1, 01.01.2013, p. 76-80.

Research output: Contribution to journalArticle

De Melo, Maria De Fátima ; Sousa Melo, Saulo ; Zanet, Tiago Gorgulho ; Fenyo-Pereira, Mlene. / Digital radiographic evaluation of the midpalatal suture in patients submitted to rapid maxillary expansion. In: Indian Journal of Dental Research. 2013 ; Vol. 24, No. 1. pp. 76-80.
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