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https://www.readbyqxmd.com/read/28648911/influence-of-bimaxillary-surgery-on-pharyngeal-airway-in-class-iii-deformities-and-effect-on-sleep-apnea-a-stop-bang-questionnaire-and-cone-beam-computed-tomography-study
#1
Narayan H Gandedkar, Chai Kiat Chng, Yong Chen Por, Vincent Kok Leng Yeow, Andrew Ow Tjin Chiew, Seah Tian Ee
PURPOSE: To evaluate pharyngeal airway space (PAS; nasopharyngeal, oropharyngeal, and total airway) volume and the correlation of an obstructive sleep apnea (OSA) and hypopnea syndrome screening questionnaire (STOP-BANG) with various mandibular setbacks during bimaxillary surgery and compare these findings with an age- and gender-matched skeletal Class I control group. PATIENTS AND METHODS: This retrospective cohort study was composed of patients with skeletal Class III discrepancy who underwent bimaxillary jaw surgery and were assessed with STOP-BANG score, cephalometry, and cone-beam computed tomography (of the PAS)...
June 1, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28644737/circulatory-cnp-rescues-craniofacial-hypoplasia-in-achondroplasia
#2
S Yamanaka, Kazumasa Nakao, N Koyama, Y Isobe, Y Ueda, Y Kanai, E Kondo, T Fujii, M Miura, A Yasoda, Kazuwa Nakao, K Bessho
Achondroplasia is the most common genetic form of human dwarfism, characterized by midfacial hypoplasia resulting in occlusal abnormality and foramen magnum stenosis, leading to serious neurologic complications and hydrocephalus. Currently, surgery is the only way to manage jaw deformity, neurologic complications, and hydrocephalus in patients with achondroplasia. We previously showed that C-type natriuretic peptide (CNP) is a potent stimulator of endochondral bone growth of long bones and vertebrae and is also a potent stimulator in the craniofacial region, which is crucial for midfacial skeletogenesis...
June 1, 2017: Journal of Dental Research
https://www.readbyqxmd.com/read/28643824/-perioral-treatment-options-in-cosmetic-facial-surgery
#3
F Bierenbroodspot, H J Schouten, R H Schepers, J Jansma
The perioral region is unique and important in the face, both from a functional and an aesthetic point of view. There is a strong relationship between the perioral soft tissues, such as the lips and the corners of the mouth, and the underlying dentition and the jaws. Perioral ageing phenomena, such as depressed corners of the mouth, volume loss and wrinkles, can be improved, however, to a limited extent with intraoral treatment. These ageing phenomena can usually be treated more effectively with several extraoral treatment modalities that also enhance perioral aesthetics...
June 2017: Nederlands Tijdschrift Voor Tandheelkunde
https://www.readbyqxmd.com/read/28638693/management-of-the-temporomandibular-joint-in-inflammatory-arthritis-involvement-of-surgical-procedures
#4
REVIEW
Rory C O'Connor, Fiona Fawthrop, Rami Salha, Andrew J Sidebottom
Many conditions may affect the temporomandibular joint (TMJ), but its incidence in individual joint diseases is low. However, inflammatory arthropathies, particularly rheumatoid and psoriatic arthritis and ankylosing spondylitis, appear to have a propensity for affecting the joint. Symptoms include pain, restriction in mouth opening, locking, and noises, which together can lead to significant impairment. Jaw rest, a soft diet, a bite splint, and medical therapy, including disease-modifying antirheumatic drugs (DMARDs) and simple analgesia, are the bedrock of initial treatment and will improve most symptoms in most patients...
June 2017: European Journal of Rheumatology
https://www.readbyqxmd.com/read/28628354/soft-tissue-enhancement-and-implant-placement-following-partial-mandibulectomy-due-to-squamous-cell-carcinoma
#5
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/28625607/postoperative-myocardial-infarction-in-an-orthognatic-jaw-surgery
#6
F Vieira Marques, F Montenegro Sá, T Lapa, I Simões
Cardiovascular complications, in particular perioperative myocardial infarctions, are central contributors to morbidity and mortality after non-cardiac surgery. We present a case of a 41-year-old male, smoker and dyslipidemic, who underwent bimaxillary orthognathic jaw surgery with the development of an acute coronary syndrome in the immediate postoperative period. We managed to early diagnose the myocardial infarction and promptly performed a percutaneous transluminal coronary angioplasty, resulting in a positive outcome...
June 15, 2017: Revista Española de Anestesiología y Reanimación
https://www.readbyqxmd.com/read/28623681/soft-tissue-changes-measured-with-three-dimensional-software-provides-new-insights-for-surgical-predictions
#7
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/28616153/a-multidisciplinary-approach-to-the-successful-management-of-gorlin-syndrome
#8
Ryan N Mello, Zaki Khan, Umar Choudry
Gorlin-Goltz syndrome (GGS) is a rare genetic syndrome with variable expressivity and autosomal dominant inheritance. The major features of GGS include numerous basal cell carcinomas (BCCs), keratocysts of the jaw, palmar/plantar pits and calcification of the falx cerebri. Authors report the case of a 51-year-old male with a 19-year history of GGS and multiple BCCs of the head and neck. He presented with a large ulcerating lesion on the right side of his face involving cutaneous, subcutaneous and muscular tissues of the temporal and orbital region...
June 2017: Journal of Surgical Case Reports
https://www.readbyqxmd.com/read/28611552/a-novel-mutation-in-pitx2-in-a-patient-with-axenfeld-rieger-syndrome
#9
Susan J Hassed, Shibo Li, Weihong Xu, Ashley C Taylor
Axenfeld-Rieger syndrome is a rare autosomal dominant condition. Anomalies include anterior segment dysgenesis of the eye, dental anomalies, maxillary hypoplasia, periumbilical anomalies, and congenital heart defects. We report a patient with Peters anomaly, dysmorphic features, congenital heart defect, umbilical hernia, short stature, and developmental delay. Diagnostic sequencing of 23 genes known to be causally related to the condition was performed on the patient, parents, and maternal grandparents. A variant of uncertain significance in PITX2 was identified...
March 2017: Molecular Syndromology
https://www.readbyqxmd.com/read/28611327/overgrowth-of-costochondral-graft-in-temporomandibular-joint-ankylosis-reconstruction-a-retrospective-study
#10
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/28610931/can-cyst-volume-be-used-to-stratify-risk-of-complications-following-cyst-defect-reconstruction-with-iliac-crest-graft
#11
Ali-Farid Safi, Andrea Grandoch, Timo Dreiseidler, Hans-Joachim Nickenig, Joachim Zöller, Matthias Kreppel
INTRODUCTION: The role of the volume of radicular and dentigerous cysts on clinical symptoms is unclear and potentially may predict development of pre- and postoperative complications, especially after cystectomies with large bony defects. Therefore the aim of this study was to assess pre- and postoperative symptoms associated to the volume of jaw cysts. MATERIAL AND METHODS: Retrospective chart review of 111 patients with follicular or dentigerous cysts from 2008-2012...
May 17, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/28602260/cystic-lesions-of-the-jaws-a-retrospective-clinicopathologic-study-of-2030-cases
#12
Lorenzo Lo Muzio, Marco Mascitti, Andrea Santarelli, Corrado Rubini, Fabrizio Bambini, Maurizio Procaccini, Dario Bertossi, Massimo Albanese, Vincenzo Bondì, Pier Francesco Nocini
OBJECTIVE: The aim of this study was to perform an epidemiologic analysis of cases of jaw cysts treated from 1973 to 2012 at the Dentistry and Maxillofacial Surgery Unit of the Verona Hospital, Italy, and to compare the data obtained with those published in the literature. STUDY DESIGN: A retrospective survey of 2030 patients treated for jaw cysts from 1973 to 2012 was performed. The lesions were classified according to the 2005 World Health Organization histologic classification, and the following variables were analyzed: age, gender, histopathologic diagnosis, and site of onset...
April 19, 2017: Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
https://www.readbyqxmd.com/read/28601298/the-effect-of-chronic-dental-inflammation-on-development-of-stage-0-medication-related-osteonecrosis-of-the-jaw
#13
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/28585700/evaluation-of-the-treatment-strategies-for-medication-related-osteonecrosis-of-the-jaws-mronj-and-the-factors-affecting-treatment-outcome-a-multicenter-retrospective-study-with-propensity-score-matching-analysis
#14
Saki Hayashida, Sakiko Soutome, Souichi Yanamoto, Shigeyuki Fujita, Takumi Hasegawa, Takahide Komori, Yuka Kojima, Hironori Miyamoto, Yasuyuki Shibuya, Nobuhiro Ueda, Tadaaki Kirita, Hirokazu Nakahara, Mitsuyo Shinohara, Masahiro Umeda
Medication-related osteonecrosis of the jaw (MRONJ) is an adverse event which may inhibit the treatment of primary disease and remarkably influence the patient's quality of life. The treatment methods for MRONJ, nonsurgical and surgical, are controversial, with no agreement as to which method provides the best outcome and should therefore be recommended. This multicenter retrospective study aimed to investigate the treatment methods and outcome in a large number of patients with MRONJ in Japan, utilizing propensity score matching analysis...
June 6, 2017: Journal of Bone and Mineral Research: the Official Journal of the American Society for Bone and Mineral Research
https://www.readbyqxmd.com/read/28584532/histological-and-histomorphometric-evaluation-of-the-synthetic-biomaterial-natix-%C3%A2-in-horizontal-reconstruction-of-alveolar-ridge
#15
Javad Mehrani Sabet, Babak Amoian, Maryam Seyedmajidi
BACKGROUND: Following loss of teeth, atrophy of alveolar ridge of the jaws is a substantial problem and unintended outcome that compels clinicians to perform bone reconstruction ahead of implant placement. Although autogenous bone is recommended as the gold standard in bone reconstruction, aninvasive second surgery harvestinga limited volume of bone (from intraoral source) has led a significant approachingthe use of synthetic bone substitute materials. The aim of this study was to evaluate the histologic and histomorphometric properties of porous titanium granules (Natix(®)) used in horizontal reconstruction of alveolar ridge before implant placement...
March 2017: Dental Research Journal
https://www.readbyqxmd.com/read/28578368/effect-of-pre-operatory-low-level-laser-therapy-on-pain-swelling-and-trismus-associated-with-third-molar-surgery
#16
M Petrini, M Ferrante, P Trentini, G Perfetti, G Spoto
BACKGROUND: The extraction of impacted third molars is commonly associated to pain, edema, trismus, limited jaw opening and movements. The aim of this retrospective study is to verify if pre-surgical low-level laser therapy (LLLT) associated with the extraction of impacted lower third molars could add benefits to the postoperative symptoms respect LLLT performed only after surgery. MATERIAL AND METHODS: Data from 45 patients subjected to a surgical extraction of lower third molars were pooled and divided into three groups...
June 4, 2017: Medicina Oral, Patología Oral y Cirugía Bucal
https://www.readbyqxmd.com/read/28573552/autogenous-bone-grafts-in-oral-implantology-is-it-still-a-gold-standard-a-consecutive-review-of-279-patients-with-456-clinical-procedures
#17
Andreas Sakkas, Frank Wilde, Marcus Heufelder, Karsten Winter, Alexander Schramm
BACKGROUND: This study assessed the clinical outcomes of graft success rate and early implant survival rate after preprosthetic alveolar ridge reconstruction with autologous bone grafts. METHODS: A consecutive retrospective study was conducted on all patients who were treated at the military outpatient clinic of the Department of Oral and Plastic Maxillofacial Surgery at the military hospital in Ulm (Germany) in the years of 2009 until 2011 with autologous bone transplantation prior to secondary implant insertion...
December 2017: International Journal of Implant Dentistry
https://www.readbyqxmd.com/read/28571287/surgical-management-of-a-rare-case-of-massive-compound-odontome-associated-with-missing-primary-tooth
#18
Elengkumaran Sankaran, Sangeetha Narasimhan, K S Sabitha, Punit Chitlangia
Odontomes are considered to be the most common odontogenic tumours of the jaws. They are benign, mixed tumours arising from the remnants of both odontogenic epithelium and the ectomesenchyme resulting in the deposition of varied propotions of enamel, dentin, cementum and pulp tissues. As these lesions show deficiency only in structural arrangement, some authors consider odontomes as hamartomas or tumour like malformations. Though these lesions are more common in children, very few cases have been reported in less than five years age group...
April 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28570001/a-clinically-validated-simulation-method-for-facial-soft-tissue-change-prediction-following-double-jaw-orthognathic-surgery
#19
Daeseung Kim, Dennis Chun-Yu Ho, Huaming Mai, Xiaoyan Zhang, Steve G F Shen, Shunyao Shen, Peng Yuan, Siting Liu, Guangming Zhang, Xiaobo Zhou, Jaime Gateno, Michael A K Liebschner, James J Xia
PURPOSE: It is clinically important to accurately predict facial soft tissue changes prior to orthognathic surgery. However, the current simulation methods are problematic, especially in anatomic regions of clinical significance, e.g., the nose, lips and chin. We developed a new 3-stage finite element method (FEM) approach that incorporates realistic tissue sliding to improve such prediction. METHODS: In Stage One, soft-tissue-change was simulated using FEM with patient-specific mesh models generated from our previously developed eFace template...
June 1, 2017: Medical Physics
https://www.readbyqxmd.com/read/28566140/computer-assisted-orthognathic-surgery-evaluation-of-mandible-registration-accuracy-and-report-of-the-first-clinical-cases-of-navigated-sagittal-split-ramus-osteotomy
#20
H Naujokat, M Rohnen, J Lichtenstein, F Birkenfeld, M Gerle, C Flörke, J Wiltfang
Intraoperative navigation is a helpful tool in complex anatomical regions or procedures. The mobility of the mandible in relation to the skull base limits the use of navigation tools on the lower jaw if the reference device is installed on the forehead. A new workflow that allows navigation-assisted sagittal split osteotomy in orthognathic surgery using a separate non-invasive mandibular registration technique has been developed. An evaluation of accuracy in different anatomical regions and with different registration techniques was performed on skull models and skulls with movable mandibles...
May 28, 2017: International Journal of Oral and Maxillofacial Surgery
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