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https://www.readbyqxmd.com/read/28223015/surgical-management-of-ankyloses-of-the-temporomandibular-joint-by-a-piezoelectric-device
#1
Giuseppe Spinelli, Domenico Valente, Giuditta Mannelli, Mirco Raffaini, Francesco Arcuri
INTRODUCTION: Piezosurgery is commonly used in different field of craniomaxillofacial surgery; since its introduction it has become one of the widely adopted technique for performing osteotomies in orthognathic surgery, distraction osteogenesis and dentoalveolar surgery. Little has been written regarding ultrasonic system for temporomandibular joint surgery (TMJ). In this prospective study we describe the use of piezoelectric device for ankylosis of the TMJ. MATERIALS AND METHODS: We enrolled in this study 19 patients, 10 males and 9 females, mean (SD) age 24...
December 18, 2016: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/28223013/genetic-response-in-masseter-muscle-after-orthognathic-surgery-in-comparison-with-healthy-controls-a-microarray-study
#2
Maya Marewski, Carola Petto, Matthias Schneider, Winfried Harzer
One third of adult patients with orthognathic surgery of a prognathic or retrognathic mandible show relapse. The sagittal split osteotomy of the mandible leads to a displacement of both parts up to 10 mm without any changes of muscle attachment. Changed mandible length needs adaptation of muscle capacity because of changed force to moment ratio. The aim of this Microarray study was to analyze the general genetic response of masseter muscle in patients with retrognathism or prognathism of the mandible six months after surgery in comparison with healthy untreated controls...
January 25, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/28217687/mentolabial-angle-and-aesthetics-a-quantitative-investigation-of-idealized-and-normative-values
#3
Farhad B Naini, Martyn T Cobourne, Umberto Garagiola, Fraser McDonald, David Wertheim
BACKGROUND: This study is a quantitative evaluation of the influence of the mentolabial angle on perceived attractiveness and threshold values of desire for surgery. METHODS: The mentolabial angle of an idealized silhouette male Caucasian profile image was altered incrementally between 84° and 162°. Images were rated on a Likert scale by pretreatment orthognathic patients (n = 75), lay people (n = 75) and clinicians (n = 35). RESULTS: A mentolabial angle of approximately 107° to 118° was deemed the most attractive, with a range of up to 140° deemed acceptable...
December 2017: Maxillofacial Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28210448/assessing-the-need-for-a-protocol-in-monitoring-weight-loss-and-nutritional-status-in-orthognathic-surgery-based-on-patients-experiences
#4
Muhammad Ruslin, Hannah Dekker, Dirk B Tuinzing, Tymour Forouzanfar
BACKGROUND: To investigate retrospectively the orthognathic surgery (OGS) patients experience in weight loss and the influence of gender, age, duration of the surgical procedure, length of hospital stay, location of surgery and use of intermaxillary fixation (IMF) or without IMF on postoperative weight loss. MATERIAL AND METHODS: A total of 4487 patients treated by OGS where all patients visited the outpatient clinic one, three and six weeks after the surgical procedure...
February 2017: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/28209396/changes-in-bite-force-after-orthognathic-surgical-correction-of-mandibular-prognathism-a-systematic-review
#5
REVIEW
I Islam, A A T Lim, R C W Wong
Patients requesting treatment for mandibular prognathism seek functional and aesthetic improvements. Improvements in bite force and efficiency are generally used as measures of better function. It is unclear what effect the surgical correction of mandibular prognathism will have on the patient's occlusal forces. The literature was searched using medical subject heading (MeSH) and key word terms 'bite force', 'osteotomy', 'orthognathic surgery', and 'prognathism'. A total of 17 articles were included in this review...
February 13, 2017: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28207462/what-are-the-contributing-factors-for-postsurgical-relapse-after-two-jaw-surgery-in-patients-with-cleft-lip-and-palate
#6
Yoon-Hee Park, Ji-Hee Seo, Il-Hyung Yang, Jin-Young Choi, Jong-Ho Lee, Myung-Jin Kim, Seung-Hak Baek
The purpose of this study was to investigate the amount and pattern of postsurgical relapse after 2-jaw surgery in cleft lip and palate patients in terms of the sagittal and vertical aspects. The samples consisted of 21 adult patients who had the similar initial skeletodental pattern before surgery and underwent 2-jaw surgery. They were divided into high relapse (n = 11) and low relapse groups (n = 10) (criteria, 30% forward relapse of the B point). After the cephalometric variables of cephalograms taken at 1 month before surgery (T0), immediately after surgery (T1), and at least 1 year after surgery (T2) were measured, the Wilcoxon test, Mann-Whitney U test, and Pearson correlation test were performed for statistical analysis...
February 15, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28195892/establishment-of-a-reliable-horizontal-reference-plane-for-3-dimensional-facial-soft-tissue-evaluation-before-and-after-orthognathic-surgery
#7
Peerasak Chortrakarnkij, Daniel Lonic, Hsiu-Hsia Lin, Lun-Jou Lo
BACKGROUND: This study aims to demonstrate the reliability of our proposed facial reference system in the horizontal axis using 3-dimensional photogrammetry and to find a correlation between this plane and the Frankfurt horizontal (FH) plane. METHODS: Forty-one patients were enrolled. Three-dimensional facial images were taken before and 6 months after orthognathic surgery. Superimposition was carried out, and differences in landmark position were evaluated. Two constant landmarks were selected to construct a reference system within a standardized reference frame...
February 14, 2017: Annals of Plastic Surgery
https://www.readbyqxmd.com/read/28194343/the-effect-of-a-condylar-repositioning-plate-on-condylar-position-and-relapse-in-two-jaw-surgery
#8
Gyu Sik Jung, Taek Kyun Kim, Jeong Woo Lee, Jung Dug Yang, Ho Yun Chung, Byung Chae Cho, Kang Young Choi
BACKGROUND: Numerous condylar repositioning methods have been reported. However, most of them are 2-dimensional or are complex procedures that require a longer operation time and a highly trained surgeon. This study aims to introduce a new technique using a condylar repositioning plate and a centric relation splint to achieve a centric relationship. METHODS: We evaluated 387 patients who had undergone surgery for skeletal jaw deformities. During the operation, a centric relation splint, intermediate splint, final centric occlusion splint, and condylar repositioning plate along with an L-type mini-plate for LeFort I osteotomy or a bicortical screw for bilateral sagittal split ramus osteotomy were utilized for rigid fixation...
January 2017: Archives of Plastic Surgery
https://www.readbyqxmd.com/read/28193444/surgical-navigation-a-systematic-review-of-indications-treatments-and-outcomes-in-oral-and-maxillofacial-surgery
#9
REVIEW
Iman Azarmehr, Kasper Stokbro, R Bryan Bell, Torben Thygesen
PURPOSE: This systematic review investigates the most common indications, treatments, and outcomes of surgical navigation (SN) published from 2010 to 2015. The evolution of SN and its application in oral and maxillofacial surgery have rapidly developed over recent years, and therapeutic indications are discussed. MATERIALS AND METHODS: A systematic search in relevant electronic databases, journals, and bibliographies of the included articles was carried out. Clinical studies with 5 or more patients published between 2010 and 2015 were included...
January 18, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28189988/a-massive-haemorrhage-developing-during-deciduous-tooth-extraction-in-a-young-child-a-case-report
#10
Gabriele Bocchialini, Luca Ferrari, Dante Burlini
INTRODUCTION: Major haemorrhage developing during oral or maxillofacial surgery is uncommon, but potentially life-threatening. Dental extractions in childhood are common, but blood loss is unusual. CASE PRESENTATION: Here, we report a rare case of a complication developing during a trivial deciduous tooth extraction. We focus on the great difference between the preoperative orthopantomography and the maxillo-facial computed tomography obtained post-haemorrhage. DISCUSSION: The surgical procedures most commonly associated with acute haemorrhage are orthognathic, oncological, and temporomandibular joint procedures...
January 30, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28182056/botox-as-an-adjunct-to-lip-repositioning-for-the-management-of-excessive-gingival-display-in-the-presence-of-hypermobility-of-upper-lip-and-vertical-maxillary-excess
#11
Lobna Abdel Aly, Nelly Ibrahim Hammouda
BACKGROUND: Excessive gingival display (GD) is a frequent finding that can occur because of various intraoral or extraoral etiologies. This work describes the use of a mucosal repositioned flap for the management of a gummy smile associated with vertical maxillary excess (VME) and hypermobility of the upper lip followed by injection of Botox. MATERIALS AND METHODS: Seven female patients in the age range of 17-25 years presented with a gummy smile. At full smile, the average GD ranged from 6 to 8 mm...
November 2016: Dental Research Journal
https://www.readbyqxmd.com/read/28181788/measuring-effectiveness-of-orthognathic-surgery-by-electromyography-a-restrospective-clinical-study
#12
Giovanni B Grossi, Umberto Garagiola, Franco Santoro
BACKGROUND: This study investigates retrospectively if the initial electromyography (EMG) status of patients who underwent orthognathic surgery correlates with the extent of post-surgical EMG functional recovery. METHODS: Clinical records concerning 20 patients who underwent Le Fort I and/or sagittal osteotomy of the mandibular ramus to correct skeletal dental class III malocclusions were retrieved and pre-surgical and post-surgical EMG data were analyzed and compared...
February 9, 2017: Minerva Stomatologica
https://www.readbyqxmd.com/read/28174370/cephalometric-soft-tissue-standard-and-gender-dimorphism-in-nasal-prominence-estimated-by-holdaway-s-analysis-in-patients-visiting-college-of-dentistry-aljouf-university
#13
Ibadullah Kundi
INTRODUCTION: The objectives were to see the nasal prominence norm and the gender dimorphism in nasal prominence measured by Holdaway's soft tissue analysis. MATERIALS AND METHODS: The sample size was 100 (50 males and 50 females). The subjects included in the study were of Saudi origin with class I skeletal and dental relationship and all teeth present. The age group of the patients was between 18 and 28 years. The radiographs were traced and analyzed by two students and cross-checked by an orthodontist...
February 1, 2017: Journal of Contemporary Dental Practice
https://www.readbyqxmd.com/read/28174061/the-effect-of-orthognathic-surgery-on-the-temporomandibular-joint-and-oral-function-a-systematic-review
#14
REVIEW
E C Te Veldhuis, A H Te Veldhuis, W M Bramer, E B Wolvius, M J Koudstaal
The objective of this systematic review was to examine the effect of orthognathic surgery (OS) on the temporomandibular joint and oral function. Electronic databases were systematically searched for studies published until October 2015. Articles were assessed against predefined inclusion criteria. The included papers were divided into four groups based on the type of OS performed. The following items were recorded: quality of evidence using the Oxford Centre for Evidence-Based medicine (CEBM) criteria, number of patients, presence/absence of controls, mean age at treatment, follow-up time, clinical examination findings, bite force, use of the Helkimo Index and Research Diagnostic Criteria for Temporomandibular Disorders, imaging findings, and patient questionnaire results...
February 4, 2017: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28169263/comparison-of-soft-tissue-changes-in-simultaneous-maxillomandibular-distraction-with-mandibular-distraction-with-second-stage-maxillary-osteotomy
#15
S M Balaji, Preetha Balaji
BACKGROUND: The purpose of this study was to compare the frontal lip cant changes in common facial asymmetry (FA) cases after simultaneous maxillomandibular distraction osteogenesis (DO) and mandibular DO with maxillary orthognathic surgery. MATERIALS AND METHODS: Retrospective analysis of FA cases at tertiary craniofacial referral was performed. Patients of either gender with all medical imaging records and pre- and post-operative (1 year) facial photographs in natural head position were included in the study...
November 2016: Indian Journal of Dental Research: Official Publication of Indian Society for Dental Research
https://www.readbyqxmd.com/read/28166135/a-modified-technique-of-mandibular-ramus-sagittal-split-osteotomy-for-prevention-of-inferior-alveolar-nerve-injury-a-prospective-cohort-study-and-outcome-assessment
#16
Peerasak Chortrakarnkij, Daniel Lonic, Hsiu-Hsia Lin, Kazuaki Yamaguchi, Sun-Goo Kim, Lun-Jou Lo
BACKGROUND: Postoperative functional impairment of the inferior alveolar nerve (IAN) has been a common and well-recognized complication. Our study introduced a modified Obwegeser-Dal Pont bilateral sagittal split osteotomy (BSSO) technique and evaluated the subsequent incidence of postoperative neurosensory disturbance of IAN. METHODS: In this prospective cohort study, 57 patients receiving our modified BSSO during orthognathic surgery were enrolled. The technique contained opening the 2 ramus cortices and inserting the osteotome bypassing the IAN to avoid nerve injury...
February 4, 2017: Annals of Plastic Surgery
https://www.readbyqxmd.com/read/28157491/intravenous-dexamethasone-administration-before-orthognathic-surgery-reduces-the-postoperative-edema-of-the-masseter-muscle-a-randomized-controlled-trial
#17
Harutsugi Abukawa, Takashi Ogawa, Michihide Kono, Toshiyuki Koizumi, Yoko Kawase-Koga, Daichi Chikazu
PURPOSE: Dexamethasone seems to suppress postoperative swelling. However, the standard administration dose of dexamethasone for bilateral sagittal split osteotomy (BSSO) has not been reported. This study focused on clarifying the most effective dose of dexamethasone for BSSO. MATERIALS AND METHODS: This research was planned as a prospective, randomized controlled, double-blind study. Patients undergoing BSSO were randomly assigned to receive intravenous preoperative dexamethasone under 3 different dose conditions: 16 mg, 8 mg, and 0 mg (control)...
January 9, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28153564/computer-assisted-surgical-planning-and-simulation-for-unilateral-condylar-benign-lesions-causing-facial-asymmetry
#18
Chuan Lu, Dongmei He, Chi Yang, Dong Huang, Edward Ellis
OBJECTIVE: The purpose of this study was to investigate the best surgical sequence for the treatment of unilateral condylar benign lesions causing facial asymmetry by applying computer-assisted surgical planning and simulation. STUDY DESIGN: Computed tomography (CT) data from 12 patients whose maxillary cant was corrected by maintaining the vertical position of the central incisors and equally intruding the long side of the maxilla and extruding the short side were analyzed by ProPlan CMF 1...
December 7, 2016: Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
https://www.readbyqxmd.com/read/28149431/virtual-surgical-planning-in-orthognathic-surgery
#19
Suraj Jaisinghani, Nicholas S Adams, Robert J Mann, John W Polley, John A Girotto
No abstract text is available yet for this article.
2017: Eplasty
https://www.readbyqxmd.com/read/28141644/midfacial-changes-through-anterior-maxillary-distraction-osteogenesis-in-patients-with-cleft-lip-and-palate
#20
Hiroyuki Kanzaki, Yoshimichi Imai, Tetsu Nakajo, Takayoshi Daimaruya, Akimitsu Sato, Masahiro Tachi, Youhei Nunomura, Yusuke Itagaki, Kazuaki Nishimura, Shoko Kochi, Kaoru Igarashi
Maxillary hypoplasia is a major issue in cleft lip and palate patients, and predictable surgical maxillary advancement is required. In the present study, the changes and stability of the maxilla and soft tissue profile achieved after the application of anterior maxillary distraction osteogenesis (AMDO) using intraoral expander in unilateral cleft lip and palate and isolated cleft palate patients were investigated by comparing to the Le Fort I osteotomy (LFI) and maxillary distraction osteogenesis (DO) with rigid external distraction (RED) system...
January 30, 2017: Journal of Craniofacial Surgery
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