Abstract
Surgically assisted maxillary expansion is a technique used to correct transverse maxillary deficiency, which is a dentofacial anomaly related to the decrease of the upper arch over the lower arch. It is applied to patients in their late teens and adults due to skeletal maturity, causing obliteration of the intermaxillary suture, which requires orthodontic procedure, associated with surgery. The purpose of this study is to report the clinical case of a patient admitted for surgical maxillary expansion through the modified technique and point out the possible advantages, such as aesthetics maintenence, long-term stability, faster return to orthodontic treatment, and improved bone healing. However, there are some contraindications when the patient presents severe crowding, roots of the canine and lateral incisor are converging and in patients who will undergo to protraction with facial mask.
Highlights
The transverse maxillary deficiency has a multifactorial etiol-‐ogy, and it is associated with func-‐tional and aesthetic commitment.The diagnosis is established through clinical exams, X-‐rays, and model study [1].The patients who need or-‐thodontic and/or surgical maxillary expansion frequently present a typ-‐ical vertical pattern: long facial height anterior inferior, high palate, low tongue posture, incompetent lips, and mouth breathing [2], uni-‐lateral or bilateral cross bite, and anterior crowding [3-‐6].The maturity of the patient’s skeleton and the amount of expan-‐sion expected are crucial to choose the technique to be performed to correct the transverse discrepancy jaw [3, 7, 8]
The purpose of this study is to report the clinical case of a pa6ent admi%ed for surgical maxillary expansion through the modified technique and point out the possible advantages, such as aesthe3cs maintenence, long-‐term stability, faster return to orthodon'c treatment, and improved bone healing
There are several authors who describe the techniques for rapid maxillary expansion
Summary
The transverse maxillary deficiency has a multifactorial etiol-‐ogy, and it is associated with func-‐tional and aesthetic commitment.The diagnosis is established through clinical exams, X-‐rays, and model study [1].The patients who need or-‐thodontic and/or surgical maxillary expansion frequently present a typ-‐ical vertical pattern: long facial height anterior inferior, high palate, low tongue posture, incompetent lips, and mouth breathing [2], uni-‐lateral or bilateral cross bite, and anterior crowding [3-‐6].The maturity of the patient’s skeleton and the amount of expan-‐sion expected are crucial to choose the technique to be performed to correct the transverse discrepancy jaw [3, 7, 8]. The transverse maxillary deficiency has a multifactorial etiol-‐. Ogy, and it is associated with func-‐. Thodontic and/or surgical maxillary expansion frequently present a typ-‐. Ical vertical pattern: long facial height anterior inferior, high palate, low tongue posture, incompetent lips, and mouth breathing [2], uni-‐. Lateral or bilateral cross bite, and anterior crowding [3-‐6]. Sion expected are crucial to choose the technique to be performed to correct the transverse discrepancy jaw [3, 7, 8]. Pect to be assessed is the magnitude of the transverse jaw discrepancy [4-‐6]
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