Profile Changes Following Maxillary Impaction and Autorotation of the Mandible

Steinhäuser, Stefanie; Richter, U.; Richter, F.; Bill, Josip; Rudzki-Janson, Ingrid

doi:10.1007/s00056-008-0723-8

Cited by 18 publications

(21 citation statements)

References 22 publications

(85 reference statements)

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“…Bryan [1] reported a study with 15 individuals, in 1994, concluding that there were no significant differences among the three prediction methods with different centers of mandibular self-rotation [12,13].…”

Section: Discussionmentioning

confidence: 99%

“…The maxillary impaction results in self-rotation of t he jaw, first described by Schendel a nd collaborators, in 1976; Bell and collaborators, in 1977 and Fish and collaborators, in 1978; such self-rotation is accompanied by skeletal and soft tissue changes observed in sagittal advance and vertical shortening of the lower face [5,12].…”

Section: Introductionmentioning

confidence: 97%

“…Bell, Epker and Wolford continued the development of the "down fracture" technique that made possible Keywords: orthognathic surgery; osteotomy Le Fort; temporomandibular joint. the mobility of the jaw for all regions [12]. The Le Fort I osteotomy for the upper jaw repositioning is the most used for correction of vertical maxillary excess [14].…”

Section: Introductionmentioning

confidence: 99%

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Surgical correction of vertical maxillary excess associated with mandibular self-rotation

Meger

Tiboni

Santos

et al. 2017

RSBO

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Introduction: The Class I skeletal deformity associated with vertical maxillary excess is a rare condition reported in the literature. Surgical impaction allows the correction of the long face and gummy smile. Objective: This case report aimed to evaluate the positioning of the condyle after Le Fort I osteotomy associated with mandibular selfrotation. Case report: The patient underwent orthognathic surgery for the correction of maxillary vertical excess. Tomography studies were performed to evaluate the initial and final position of the condyle. The patient improved mastication, breathing and phonetics, with esthetic benefit. Conclusion: After the Le Fort I osteotomy and mandibular self-rotation, the condyle remained stable occupying a new anterior-superior position in the glenoid fossa and patient's TMJ remained asymptomatic after 9 months of postoperative follow-up.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 97%

Section: Introductionmentioning

confidence: 99%

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Surgical correction of vertical maxillary excess associated with mandibular self-rotation

Meger

Tiboni

Santos

et al. 2017

RSBO

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“…Maxillary impaction allows correction of the Gummy Smile, long face syndrome, specific types of open bite from a skeletal origin and labial sealing. 35 The Le Fort I osteotomy of the maxilla allows reduction of bone between the nasal floor and apices of maxillary teeth which permits superior repositioning (impaction) of the maxilla. 17 When having bimaxillary protrusion, the treatment option may be composed of first premolar extractions followed by the osteotomy through the extraction sites to mobilize the anterior segment of the maxilla.…”

Section: Treatment Of Gummy Smilementioning

confidence: 99%

Gummy Smile: A Review of Etiology, Manifestations, and Treatment

Mahardawi

Chaisamut

Wongsirichat

2019

Smj

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Excessive gingival display, or what is known as Gummy Smile, is a clinical condition which is attracting a great attention and focus recently. Having knowledge and background about the cause and the treatment of each case of excessive gingival display is essential for making the accurate diagnosis and performing the correct procedure. This article reviews the most common causes of excessive gingival display, manifestations of this condition, and some of the important treatment options for Gummy Smile. In addition, the article also puts the light on some points regarding the accepted measurement in several studies, and considers the prediction planning for Gummy Smile associated with a skeletal etiology.

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“…In contrast, vertical pull chin cup appliances are effective in producing true anterior mandibular rotation and decreasing the anterior facial height 44–42. For example, young patients treated with anterior-pull chin-cup therapy show twice as much forward movement of the chin, and almost three times as much true mandibular forward rotation, than matched controls 42.…”

Section: Introductionmentioning

confidence: 99%

Orthopedic Correction of Growing Hyperdivergent, Retrognathic Patients With Miniscrew Implants

Buschang¹,

Carrillo²,

Rossouw

2011

Journal of Oral and Maxillofacial Surgery

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Traditional orthodontic treatments do not adequately address the skeletal problems of retrognathic, hyperdivergent, Class II adolescents; the few approaches that do require long-term patient compliance. This paper introduces a novel approach using miniscrew implants (MSIa) and growth to treat retrognathic hyperdivergent adolescents. Nine consecutive patients were evaluated at the start of treatment (13.2 ±1.1 years of age) and again at the end of the orthopedic phase (after 1.9 ±0.3 years). Each patient had two MSIs placed in either side of the palate. Coil springs (150 g) extended from the MSIs to a RPE, which served as a rigid segment for intruding the maxillary premolar and molars. Two additional MSIs were placed between the first mandibular molars and second premolars; coil spring (150 g) extended from the MSIs to hold or intrude the mandibular molars. Prior to treatment, the patients exhibited substantial and significant mandibular retrusion (Z-score=−1.0), facial convexity (Z-score=0.7), and hyperdivergence (Z-score=1.6). Treatment produced consistent and substantial orthopedic effects. The chin was advanced an average of 2.4 mm, the SNB angle increased by 2.1°, the mandibular plane angle decreased 3.9°, and facial convexity decreased by approximately 3.2°. Questionnaires showed that this treatment approach was not painful or uncomfortable; the majority of the patients indicated that they were very likely to recommend the treatment to others. Treatment was accomplished by titrating the amount of orthodontic intrusion performed based on the individuals' growth potential.

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Profile Changes Following Maxillary Impaction and Autorotation of the Mandible

Abstract: This study showed that the change in the facial profile caused by autorotation of the mandible after Le Fort I osteotomy and maxillary impaction can be predicted in relation to the dimensions of maxillary impaction.

Cited by 18 publications

References 22 publications

Surgical correction of vertical maxillary excess associated with mandibular self-rotation

Surgical correction of vertical maxillary excess associated with mandibular self-rotation

Gummy Smile: A Review of Etiology, Manifestations, and Treatment

Orthopedic Correction of Growing Hyperdivergent, Retrognathic Patients With Miniscrew Implants

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