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Mandibular surgery

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https://www.readbyqxmd.com/read/28639069/the-application-of-3d-printing-technology-for-simultaneous-orthognathic-surgery-and-mandibular-contour-osteoplasty-in-the-treatment-of-craniofacial-deformities
#1
Yanju Xiao, Xiumei Sun, Lin Wang, Yaoyao Zhang, Kai Chen, Guomin Wu
BACKGROUND: Because of the limitation of specific preoperative design and surgical templates, orthognathic surgery and mandibular contour osteoplasty are generally performed in two stages. Three-dimensional printing technology has improved the accuracy of the surgery and results in good surgical predictability easily. This study aims to confirm the effectiveness, feasibility and precision of simultaneous mandibular contour osteoplasty and orthognathic surgery with the assistance of 3D printing technology...
June 21, 2017: Aesthetic Plastic Surgery
https://www.readbyqxmd.com/read/28638558/impacted-lower-third-molars-and-distal-caries-in-the-mandibular-second-molar-is-prophylactic-removal-of-lower-third-molars-justified
#2
José Marques, Marta Montserrat-Bosch, Rui Figueiredo, Miguel-Angel Vilchez-Pérez, Eduard Valmaseda-Castellón, Cosme Gay-Escoda
BACKGROUND: The objective of this study was to evaluate the association between the presence of mandibular third molars and the occurrence of carious lesions in the distal aspect of the mandibular second molar. MATERIAL AND METHODS: A retrospective cohort study comprising 327 lower third molars extracted in the Oral Surgery and Implantology Master's Degree program of the School of Dentistry of the University of Barcelona (Barcelona, Spain) was carried out. A descriptive and bivariate analysis was made...
June 2017: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/28634783/the-treatment-for-the-first-branchial-cleft-anomalies-in-children
#3
Wei Liu, Min Chen, Jinsheng Hao, Yang Yang, Jie Zhang, Xin Ni
The objective of this study is to make a clinical analysis for first branchial cleft anomalies (FBCAs), especially introduce the relationship between the Type I/II FBCA with the facial nerve and to demonstrate the importance of using intraoperative microscope and facial nerve monitoring. This is a retrospective review of patients with FBCAs treated in Beijing Children's Hospital, from Jan 2013 to Dec 2015. Clinical data of patients, including sex, age, chief complains, history of surgery, incision and drainage, the relationship with the facial nerve, pre and post-operative facial paralysis, recurrent rate and complications were recorded...
June 20, 2017: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/28631539/regional-nerve-blocks-for-equine-dentistry
#4
Molly K Rice
Regional nerve blocks are necessary to facilitate equine oral surgery in the standing sedated patient. Step-by-step instruction on how to perform common regional nerve blocks are discussed, including infraorbital, maxillary, middle mental, and inferior alveolar nerve blocks. Regional nerve blocks are critical when performing dental procedures in the standing horse.(1) The infraorbital and maxillary nerve blocks provide anesthesia of the infraorbital nerve, which is a branch of the maxillary nerve. Both nerve blocks provide adequate anesthesia for all maxillary dental procedures...
June 2017: Journal of Veterinary Dentistry
https://www.readbyqxmd.com/read/28630855/qualitative-correlation-between-postoperatively-increased-vertical-dimension-and-mandibular-position-in-skeletal-class-iii-using-partial-least-square-path-modeling
#5
Na-Ri Kim, Soo-Byung Park, Jihyun Lee, Youn-Kyung Choi, Sang Min Shin, Yong-Seok Choi, Yong-Il Kim
BACKGROUND: This study constructed a partial-least-square path-modeling (PLS-PM) model and found the pathway by which the postsurgical vertical dimension (VD) affects the extent of the final mandibular setback on the B point at the posttreatment stage for the skeletal class III surgery-first approach (SFA). METHODS: This study re-analyzed the data from the retrospective study by Lee et al. on 40 patients with skeletal class III bimaxillary SFA. Variables were obtained from cone beam computed tomography (CBCT)-generated cephalograms...
December 2017: Maxillofacial Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28628354/soft-tissue-enhancement-and-implant-placement-following-partial-mandibulectomy-due-to-squamous-cell-carcinoma
#6
Fabio Bernardello, Giampietro Bertasi, Ralph Mackey Powers, Sergio Spinato, Andrea Viaggi, Jimmie Bullock, Pietro Felice
Many dental procedures allow for implant placement in partially or totally edentulous patients. Despite the availability of various implant and abutment types on the market, it often becomes quite challenging to achieve the biological and esthetic goals in a patient who has ridge deficiencies. Where problems will arise is from the lack of adequate bone quality and quantity.1,2 Soft tissue form and maintenance is also a consideration to evaluate.3 Primary reconstructive techniques following segmental mandibulectomy is evolving and improves quality of life...
June 19, 2017: Journal of Oral Implantology
https://www.readbyqxmd.com/read/28624835/cbct-location-of-the-fusion-between-the-buccal-and-lingual-cortical-in-the-mandibular-ramus-importance-to-sagittal-split-osteotomy
#7
L Scomparin, M-Q-S Soares, C-M-F Rubira, R-Y-F Yaedú, T-S-N Imada, B-S Centurion, E-S Tolentino, J-R-P Lauris, I-R-F Rubira-Bullen
BACKGROUND: Mandibular Sagittal Split Osteotomy (MSSO) is a popular technique in orthognathic surgery used both to advance and to retreat the mandible. However, MSSO may incur in important complications, such as bad splits and sensorineural injuries. Knowing the location of the fusion between the buccal and lingual cortical (FBLC) in the mandibular ramus and the bone thickness in the region where osteotomies will be performed is determinant in MSSO planning to avoid complications. The aim of this study was to document and evaluate possible differences between sexes regarding the location of the FBLC in relation to the superior cortical of mandibular foramen (MF) and bone thickness in the region of interest for MSSO in a Brazilian population...
June 18, 2017: Medicina Oral, Patología Oral y Cirugía Bucal
https://www.readbyqxmd.com/read/28623681/soft-tissue-changes-measured-with-three-dimensional-software-provides-new-insights-for-surgical-predictions
#8
Yu-Jen Chang, Antônio C O Ruellas, Marilia S Yatabe, Philip M Westgate, Lucia H S Cevidanes, Sarandeep S Huja
PURPOSE: Although computer-aided craniofacial reconstructions allows for simulation of hard tissue changes, the prediction of the final soft tissue facial changes remains a challenge. The purpose of the present study was to evaluate the 3-dimensional (3D) soft tissue changes in patients undergoing 2-jaw orthognathic surgery. PATIENTS AND METHODS: For the present retrospective cohort study, 40 consecutive patients (11 men and 29 women; mean age 23.5 ± 4.9 years) who had undergone 2-jaw orthognathic surgery were selected...
May 24, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28622922/cross-sectional-human-study-of-soft-tissue-chin-stc-thickness-in-adult-patients-in-relation-to-sex-facial-pattern-and-skeletal-class
#9
Yolanda Gomez, Natalia Zamora, Beatriz Tarazona, Carlos Bellot-Arcís, Vanessa Paredes-Gallardo
PURPOSE: The aim of this study was to study the relations between the soft tissue chin (STC) and sex, skeletal class, and facial pattern; and to describe the shape and behavior of the STC. METHODS: 385 non-growing patients were selected, 206 women and 179 men, with a mean age of 28.8 years (SD 4.2). Patients were divided into groups by skeletal class (class I, II or III) and facial pattern (brachyfacial, mesofacial or dolichofacial). STC thicknesses were measured at pogonion (Pg), soft pogonion (Pg'), gnathion (Gn), soft gnathion (Gn'), menton (Me) and soft menton (Me') in the CBCTs...
April 19, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/28615689/nomogram-model-to-predict-postoperative-infection-after-mandibular-osteoradionecrosis-surgery
#10
Zhonglong Liu, Tianguo Dai, Zhonghe Wang, Zhiyuan Zhang, Weiliu Qiu, Yue He
Osteoradionecrosis of the mandible (ORNM) is one of the most dreaded complications of radiotherapy. The poor healing capacity of soft tissue after radiation may lead to surgical failure. The current study was designed to identify prognostic factors for postoperative infection (PPI) and propose corresponding prophylaxis and intervention protocols. A retrospective study was conducted concerning ORNM patients from 2000 to 2015. A risk-stratification score and nomogram model were established to predict the risk of PPI...
June 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28611327/overgrowth-of-costochondral-graft-in-temporomandibular-joint-ankylosis-reconstruction-a-retrospective-study
#11
S M Balaji, Preetha Balaji
BACKGROUND: Temporomandibular joint (TMJ) ankylosis is a situation in which the mandibular condyle is fused to the glenoid fossa by bone or fibrous tissue. The management of TMJ ankylosis has a complicated chore, and it is challenging for the maxillofacial surgeon because of technical hitches and high rate of reankylosis. Costochondral graft (CCG) is a common treatment modality for TMJ ankylosis. One of disadvantages of CCG is unpredictability of growth pattern and risk of overgrowth...
March 2017: Indian Journal of Dental Research: Official Publication of Indian Society for Dental Research
https://www.readbyqxmd.com/read/28610818/effect-of-pre-emptive-analgesia-on-clinical-parameters-and-tissue-levels-of-tnf-%C3%AE-and-il-1%C3%AE-in-third-molar-surgery-a-triple-blind-randomized-placebo-controlled-study
#12
A F M Albuquerque, C S R Fonteles, D R do Val, H V Chaves, M M Bezerra, K M A Pereira, P G de Barros Silva, B B de Lima, E C S Soares, T R Ribeiro, F W G Costa
This study aimed to evaluate whether pre-emptive analgesia modifies the tissue expression of tumour necrosis factor alpha (TNF-α) and interleukin 1 beta (IL-1β), and whether there is an association with postoperative surgical outcomes. A triple-blind, randomized, placebo-controlled study of patients undergoing mandibular third molar removal was performed. Volunteers were allocated randomly to receive etoricoxib 120 mg, ibuprofen 400 mg, or placebo 1h before surgery. Twenty-four surgical sites per group were required (95% confidence level and 80% statistical power)...
June 10, 2017: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28609493/vestibuloplasty-with-retroauricular-skin-grafts-for-dental-implant-rehabilitation-in-vascularized-fibula-grafts-two-case-reports
#13
Metin Sencimen, Aydin Gulses, Altan Varol, Mustafa Ayna, Jölide Ozen, Necdet Dogan, Yahya Açil
The aim of this study was to present the use of retroauricular full-thickness skin grafts in vestibuloplasty surgeries for dental implant rehabilitation in vascularized fibula grafts. Two patients underwent mandibular reconstruction with vascularized fibula grafts due to mandibular gunshot injuries. Inadequate sulcus gaps secondary to mandibular soft tissue deficiencies were managed by full-thickness autologous skin grafts harvested from the retroauricular region. Dental rehabilitation was achieved by implants placed in free fibula grafts...
July 2017: International Journal of Periodontics & Restorative Dentistry
https://www.readbyqxmd.com/read/28609491/interpositional-augmentation-technique-in-the-treatment-of-posterior-mandibular-atrophies-a-retrospective-study-comparing-129-autogenous-and-heterologous-bone-blocks-with-2-to-7-years-follow-up
#14
Pietro Felice, Carlo Barausse, Antonio Barone, Giovanni Zucchelli, Maurizio Piattelli, Roberto Pistilli, Daniela Rita Ippolito, Massimo Simion
The aim of this retrospective study was to compare clinical and radiographic outcomes of the interpositional (inlay) augmentation technique in atrophic posterior partially edentulous mandibles using three different types of block bone grafts: autogenous bone block harvested from the iliac crest, deproteinized bovine bone mineral block, and collagenated equine bone block. A total of 115 patients were included with a 4.2-year mean after-loading follow-up. Data seem to suggest that heterologous bone blocks are similar in results to autogenous bone blocks, so they might be considered preferable as they avoid invasive harvesting surgeries...
July 2017: International Journal of Periodontics & Restorative Dentistry
https://www.readbyqxmd.com/read/28604375/retained-upper-third-molars-during-le-fort-i-osteotomy-with-downfracture
#15
Marco Friscia, Marzia Petrocelli, Carolina Sbordone, Raffaele Corvino, Fabio Maglitto, Francesco Maria Cassandro, Giorgio Iaconetta, Luigi Califano
AIM: The aim of our study is to demonstrate that the presence of upper wisdom teeth must be evaluated before and during Le Fort I osteotomy because attention must be focused to the disadvantages or facilitations of surgery depending on molar presence. MATERIALS OF STUDY: Our study has analyzed two groups, each one including 20 patients, 10 males and 10 females, with an age between 16-30 years. The first group was treated with le Fort I osteotomy leaving in situ the wisdom upper third molars...
2017: Annali Italiani di Chirurgia
https://www.readbyqxmd.com/read/28604089/comparison-of-articaine-and-lidocaine-for-buccal-infiltration-after-inferior-alveolar-nerve-block-for-intraoperative-pain-control-during-impacted-mandibular-third-molar-surgery
#16
Geraldo Prisco da Silva-Junior, Liane Maciel de Almeida Souza, Francisco Carlos Groppo
In order to compare the efficacy of lidocaine and articaine for pain control during third molar surgery, 160 patients presenting bilateral asymptomatic impacted mandibular third molars were selected. They received 1.8 mL of 2% lidocaine with epinephrine 1:100,000 during inferior alveolar nerve block. In group 1 (n = 80), an infiltrative injection of 0.9 mL of 2% lidocaine with epinephrine 1:100,000 was performed in buccal-distal mucosa of the third molar. Group 2 (n = 80) received 0.9 mL of 4% articaine with epinephrine 1:100,000 in the contralateral side...
2017: Anesthesia Progress
https://www.readbyqxmd.com/read/28604085/tension-pneumothorax-after-percutaneous-tracheostomy
#17
Sarina Matsumura, Naotaka Kishimoto, Tomio Iseki, Yoshihiro Momota
A 76-year-old woman with right mandibular gingival cancer was scheduled for surgery. A percutaneous tracheostomy kit was used for tracheostomy under intravenous sedation. After puncturing the cricothyroid membrane, a dilator was inserted along a guidewire. Bucking was observed at the time of insertion of the dilator, despite intratracheal lidocaine spray applied before insertion. After that, the tracheostomy tube was inserted, but no capnographic waveforms appeared when the tube was connected to the anesthesia circuit...
2017: Anesthesia Progress
https://www.readbyqxmd.com/read/28601298/the-effect-of-chronic-dental-inflammation-on-development-of-stage-0-medication-related-osteonecrosis-of-the-jaw
#18
Goknur Topaloglu, Osman Taha Koseoglu, Cigdem Karaca, Kemal Kosemehmetoglu
OBJECTIVE: The pathogenesis of medication-related osteonecrosis of jaw (MRONJ) is poorly understood. The aim of this prospective study was to determine the effect of chronic dental inflammation on the development of Stage 0 MRONJ based on histopathological findings. METHODS: The study involved patients with a history of bisphosphonate use and an indication for tooth extraction. Before surgery, C-terminal telopeptide test (CTX) values were collected from all patients...
May 12, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/28601235/correlation-between-change-of-tongue-area-and-skeletal-stability-after-correction-of-mandibular-prognathism
#19
Yu-Chuan Tseng, Ju-Hui Wu, Chun-Ming Chen, Kun-Jung Hsu
The purpose of this study was to investigate the correlation between postoperative stability and a change in tongue area after treatment of mandibular prognathism. Twenty-six patients, who were treated for mandibular prognathism using intraoral vertical ramus osteotomy, were evaluated cephalometrically. A set of three standardized lateral cephalograms were obtained from each participant preoperatively (T1), immediately postoperatively (T2), and after 2 years postoperatively (T3). Student t test and Pearson correlation coefficient were used for statistical analysis...
June 2017: Kaohsiung Journal of Medical Sciences
https://www.readbyqxmd.com/read/28600917/application-of-combined-osteotomy-and-reconstruction-pre-bent-plate-position-corppp-technology-to-assist-in-the-precise-reconstruction-of-segmental-mandibular-defects
#20
Ye Liang, Canhua Jiang, Limeng Wu, Wenjin Wang, Yonggang Liu, Xinchun Jian
PURPOSE: To introduce and evaluate the clinical effects of digital surgical guide plate technology in the combined osteotomy and reconstruction pre-bent plate position (CORPPP) technique during mandibular segmental resections. MATERIALS AND METHODS: Seven cases of mandibular segmental resection with simultaneous vascularized free fibula flap reconstruction by oral and maxillofacial surgery were selected (Xiangya Hospital, Changsha, China; June 2015 through December 2015)...
May 15, 2017: Journal of Oral and Maxillofacial Surgery
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