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Pre-Assessment For Rhinoplasty
Published in R James A England, Eamon Shamil, Rajeev Mathew, Manohar Bance, Pavol Surda, Jemy Jose, Omar Hilmi, Adam J Donne, Scott-Brown's Essential Otorhinolaryngology, 2022
Catherine Rennie, Hesham Saleh
Lip–chin relationship: The horizontal distance from the surface of the upper lip to that of lower lip is normally around 2 mm. The anterior surfaces of the upper and lower lips rest on the nasomental line in an aesthetic face (Figure 46.2B). When the chin lies posterior to this line, it is described as retrognathic; when it lies anterior it is prognathic. A retrognathic chin can give the illusion of an over projected nose, and the reverse applies to a prognathic chin. Genioplasty or chin implant procedures are therefore often used in conjunction with rhinoplasty.
The Anatomical Location of the Mandibular Canal: Its Relationship to the Sagittal Ramus Osteotomy
Published in Niall MH McLeod, Peter A Brennan, 50 Landmark Papers every Oral & Maxillofacial Surgeon Should Know, 2020
The study also demonstrated that the most inferior point of the canal is at the distal half of the first molar tooth and NOT at the mental foramen. This is of particular relevance when you are performing a genioplasty. The operator must ensure that the genioplasty osteotomy lies well below the mental foramen to ensure the nerve is not sectioned inferior to and proximal to the mental foramen when you are performing the horizontal cut.
Pre-Operative Assessment for Rhinoplasty
Published in John C Watkinson, Raymond W Clarke, Terry M Jones, Vinidh Paleri, Nicholas White, Tim Woolford, Head & Neck Surgery Plastic Surgery, 2018
Hesham Saleh, Catherine Rennie
Lip–chin relationship: The horizontal distance from the surface of the upper lip to that of lower lip is normally around 2 mm. The anterior surface of the upper and lower lips rest on the nasomental line in an aesthetic face (Figure 81.7).34 When the chin lies posterior to this line, it is described as retrognathic; when it lies anterior to this line, it is described as prognathic. A retrognathic chin can give the illusion of an overprojected nose and the reverse applies to a prognathic chin. Genioplasty or chin implant procedures are therefore often used in conjunction with rhinoplasty.35
Obstructive sleep apnea: personalizing CPAP alternative therapies to individual physiology
Published in Expert Review of Respiratory Medicine, 2022
Brandon Nokes, Jessica Cooper, Michelle Cao
Skeletal surgery includes 1) hyoid advancement 2) genioplasty/genioglossus advancement 3) maxillary expansion 4) maxillomandibular advancement 5) mandibular distraction and 6) maxillomandibular expansion. The two most common are maxillomandibular advancement (MMA) and genioglossus advancement (GGA), which are often described as tongue base surgery [91]. Predictors of success for skeletal surgery are complete concentric collapse (CCC) and lateral pharyngeal wall collapse (LPW) on DISE, or congenital dentofacial deformity on physical exam [91]. Previously, MMA was used as a salvage surgical therapy for OSA, but now has more predictable clinical outcomes through visualizing the pattern of collapse at the velum during DISE [91]. The OSA cure rate for MMA is approximately 38%, but again can be optimized through careful patient selection [92].
Condylectomy as a treatment approach to condylar hyperplasia
Published in Orthodontic Waves, 2021
Sarah Abu Arqub, Carlos Villegas, Flavio Uribe
The term low (proportional) condylectomy refers to the removal of the active portion of the condyle in cases of TMJ tumours and additionally resecting some of the bone on the affected side to match the unaffected side, thus correcting the mandibular height. When low condylectomy is used for the removal of osteochondroma, the healthy side is used as a reference to level the occlusal plane [53–55]. On the other hand, the term high condylectomy refers to the removal of the most superior aspect of the mandibular condyle (5 mm), which is considered the most active growth region of the condylar head [45]. The presence of condylar activity is a very important parameter for this therapeutic approach. It has been suggested that condylectomy stops the condylar overgrowth and eliminates the future asymmetry [10]. Contouring, osteotomies, grafts and genioplasty might be done if needed to improve facial symmetry [56,57].
Soft tissues cephalometric norms for a sample of Sudanese adults. Part I: Legan and Burstone analysis
Published in Orthodontic Waves, 2020
Marwa M. Hamid, Amal H. Abuaffan
The lower face-throat angle is essential in planning surgical correction of anteroposterior facial dysplasia. Moreover, surgical procedures to reduce chin prominence in patients with obtuse angle or class III must be avoided. However, in class III patients with short throats alternative procedures to chin reduction must be considered such as maxillary advancement, mandibular subapical set back with or without advancement genioplasty or even compromised tooth positions [9].