High-resolution multislice computerized tomography with multiplanar and 3-dimensional reformation imaging in rapid palatal expansion

Habersack, Karin; Karoglan, Anita; Sommer, Bernhard; Benner, Klaus

doi:10.1016/j.ajodo.2005.09.030

Cited by 47 publications

(29 citation statements)

References 5 publications

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“…As X-ray energy (kilovoltage) decreases, the contrast between structures crossed by the X-ray beam increases. 32,33 With regard to previous reports that used CT images of patients who underwent RME, [18][19][20]34 the present study investigated a notably larger group of patients (17 patients), and observations were recorded both after active expansion and after an adequate period for retention (6 months), thus allowing for reossification and reorganization of the midpalatal sutural tissue. [21][22][23][24] Moreover, all treated subjects received RME therapy before or during the pubertal growth spurt (stages in cervical vertebral maturation from CS1 to CS4).…”

Section: Discussionmentioning

confidence: 99%

Immediate and Post-Retention Effects of Rapid Maxillary Expansion Investigated by Computed Tomography in Growing Patients

Ballanti

Lione

Fanucci

et al. 2009

The Angle Orthodontist

100

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Objective: To determine by low-dose computed tomography (CT) protocol the dental and periodontal effects of rapid maxillary expansion (RME). Materials and Methods: The sample comprised 17 subjects (7 males and 10 females), with a mean age at first observation of 11.2 years. Each patient underwent expansion of 7 mm. Multislice CT scans were taken before rapid palatal expansion (T0), at the end of the active expansion phase (T1), and after a retention period of 6 months (T2). On scanned images, measurements were performed at the dental and periodontal levels. Mean differences between measurements at T0, T1, and T2 were examined through analysis of variance (ANOVA) for repeated measures with post-hoc tests. Results: All interdental transverse measurements were significantly increased at both T1 and T2 with respect to T0. In the evaluation of T0-T1 changes, periodontal measurements were significant on the buccal aspect of banded teeth with a reduction in alveolar bone thickness corresponding to the mesial (−0.5 mm; P < .05) and distal (−0.4 mm; P < .05) roots of the right first molar and to the mesial root of the left first molar (−0.3 mm; P < .05). In the evaluation of overall T0-T2 changes, the lingual bone plate thickness of both first molars was found to be significantly increased (+0.6 mm; P < .05). Conclusions: RME therapy induces a significant increase in the transverse dimension of the maxillary arch in growing subjects without causing permanent injury to the periodontal bony support of anchoring teeth discernible on CT imaging.

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Section: Discussionmentioning

confidence: 99%

Immediate and Post-Retention Effects of Rapid Maxillary Expansion Investigated by Computed Tomography in Growing Patients

Ballanti

Lione

Fanucci

et al. 2009

The Angle Orthodontist

100

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“…The predominance of the maxillary contribution may be due to the triangular pattern of suture opening with the base at the maxillary anterior part. 5 …”

Section: 7-121921mentioning

confidence: 99%

“…The RME effects have been noted in such neighboring structures as the internasal, naso-maxillary, and fronto-maxillary sutures 5 and even the spheno-occipital synchondrosis in youngsters. 6 Disarticulating these sutures will lead to anatomical changes in the nasal cavity with an increase in the nasal volume, [7][8][9][10][11][12] which decreases the nasal airway resistance, establishes predominant nasal respiration, and improves the nasal airway ventilation.…”

Section: Introductionmentioning

confidence: 99%

Three-dimensional changes of the naso-maxillary complex following rapid maxillary expansion

Bouserhal

Bassil-Nassif

Tauk³

et al. 2013

The Angle Orthodontist

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Objective: To assess the volumetric changes and the maxillary response of the naso-maxillary complex (NMC) following rapid maxillary expansion (RME). Materials and Methods: Thirty consecutive patients (14 males and 16 females) with a mean age at first observation of 9.5 6 1.8 years for males and of 11.8 6 1.7 years for females, presenting a posterior unilateral or bilateral crossbite and requiring RME, were selected for the study. Each patient underwent expansion to correct the transverse occlusal relationships. Computed tomography scans were taken before RME (T1) and at the end of the active expansion phase (T2). Measurements were performed on scanned images. The Kolmogorov-Smirnov test was performed; the mean differences between measurements at T1 and T2 were compared using the ttest (a 5 .05). Results: All volumetric, maxillary, transverse skeletal anterior and posterior variables as well as all dental anterior and posterior linear and angular variables representing the NMC displayed statistically highly significant increases after RME (P , .001). Conclusions: After RME the total volume of the NMC increased by 12%, the nasal volume by 17%, and the maxillary volume by 10.6%. The maxillary and the nasal contributions represented 69. 75% and 30.25%, respectively. (Angle Orthod. 2014;84:88-95.)

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“…Timms et al (29) were the first to use computed tomography (ct) for the assessment of skeletal maxillary changes induced by RMe, but these tomographic evaluations were neglected from the orthodontists for a long time. in recent years, CT utilization for the assessment of treatment changes of RMe became popular among orthodontists, and a lot of articles appeared in literature (8,9,12,25,28). Some authors (5, 23) also used stone casts to evaluate the same changes in the palate.…”

Section: Introductionmentioning

confidence: 99%

Two-Dimensional Assessment of Morphological Changes of Maxilla Induced by Rapid Maxillary Expansion: A New Method

Oktay

Kılıç

2009

Biotechnology & Biotechnological Equipment

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High-resolution multislice computerized tomography with multiplanar and 3-dimensional reformation imaging in rapid palatal expansion

Cited by 47 publications

References 5 publications

Immediate and Post-Retention Effects of Rapid Maxillary Expansion Investigated by Computed Tomography in Growing Patients

Immediate and Post-Retention Effects of Rapid Maxillary Expansion Investigated by Computed Tomography in Growing Patients

Three-dimensional changes of the naso-maxillary complex following rapid maxillary expansion

Two-Dimensional Assessment of Morphological Changes of Maxilla Induced by Rapid Maxillary Expansion: A New Method

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