Author:
Parhofer Robert,Rau Andrea,Strobel Karin,Gölz Lina,Stark Renée,Ritschl Lucas M.,Wolff Klaus-Dietrich,Kesting Marco R.,Grill Florian D.,Seidel Corinna L.
Abstract
Abstract
Objective
Passive alveolar molding (PAM) and nasoalveolar molding (NAM) are established presurgical infant orthodontic (PSIO) therapies for cleft lip palate (CLP) patients. PAM guides maxillary growth with a modified Hotz appliance, while NAM also uses extraoral taping and includes nasal stents. The effects of these techniques on alveolar arch growth have rarely been compared.
Material and methods
We retrospectively compared 3D-scanned maxillary models obtained before and after PSIO from infants with unilateral, non-syndromic CLP treated with PAM (n = 16) versus NAM (n = 13). Nine anatomical points were set digitally by four raters and transversal/sagittal distances and rotations of the maxilla were measured.
Results
Both appliances reduced the anterior cleft, but NAM percentage wise more. NAM decreased the anterior and medial transversal width compared to PAM, which led to no change. With both appliances, the posterior width increased. The alveolar arch length of the great and small segments and the sagittal length of the maxilla increased with PAM but only partially with NAM. However, NAM induced a significant greater medial rotation of the larger and smaller segment compared to PAM with respect to the lateral angle.
Conclusions
NAM and PAM presented some significant differences regarding maxillary growth. While NAM reduced the anterior cleft and effectively rotated the segments medially, PAM allowed more transversal and sagittal growth.
Clinical relevance
The results of this study should be taken into consideration when to decide whether to use PAM or NAM, since they show a different outcome within the first few months. Further studies are necessary regarding long-term differences.
Funder
Friedrich-Alexander-Universität Erlangen-Nürnberg
Publisher
Springer Science and Business Media LLC
Reference36 articles.
1. Tolarova MM (2009) Pediatric cleft lip and palate. Medscape drugs, disease and procedures. p 1–12
2. Schwenzer N, Ehrenfeld M, Austermann KH (2002) Spezielle chirurgie. Thieme Verlag, p 195–233
3. Marginean C et al (2018) Prenatal diagnosis of cleft lip and cleft lip palate — a case series. Med Ultrason 20(4):531–535
4. Schopf P (1991) Curriculum kieferorthopädie Band I und II. Quintessenz Verlags-GmbH 4. überarbeitete Auflage 2008, p 695–705
5. Hausamen JE et al (1995) Mund-, Kiefer- und Gesichtschirurgie. Springer Berlin Heidelberg, 4. überarbeitete Auflage 2012, p 309–365
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