IP Indian Journal of Orthodontics and Dentofacial Research


Effect of Quad Helix appliance on maxillary constriction (holdway measurements)


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Author Details: Maher Fouda, Ahmed Hafez, Hawa Shoaib

Volume : 3

Issue : 3

Online ISSN : 2581-9364

Print ISSN : 2581-9356

Article First Page : 172

Article End Page : 175


Abstract

Objective: to evaluate expansion changes by removable Quad helix appliance on soft tissues profile in growing patients.
Materials and Method: the present prospective clinical study consisted of fifteen subjects (8 girls and 7 boys) with cross bite due to constricted maxillary arch. Cases were selected to be treated for 8 months.
Results: No significant difference Soft tissue facial angle, H angle, SK profile convexity, Soft tissues chin thickness, Superior sulcus depth, Nose prominence and significant difference of Basic upper lip thickness and Upper lip thickness.
Conclusion: the effect of expansion by Quad helix appliance on soft tissue facial angle, H angle and profile convexity showed insignificant changes after the expansion period and significant change of upper lip thickness and Basic upper lip thickness.

Keywords:
Constricted maxilla, Expansion, Cross bite, Growing patients, Quad helix appliance, Soft tissues, Holdway measurements