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Inferior alveolar nerve

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https://www.readbyqxmd.com/read/28072837/locally-produced-bdnf-promotes-sclerotic-change-in-alveolar-bone-after-nerve-injury
#1
Hiroko Ida-Yonemochi, Yurie Yamada, Hiroyuki Yoshikawa, Kenji Seo
Brain-derived neurotrophic factor (BDNF), which is released due to nerve injury, is known to promote the natural healing of injured nerves. It is often observed that damage of mandibular canal induces local sclerotic changes in alveolar bone. We reported that peripheral nerve injury promotes the local production of BDNF; therefore, it was possible to hypothesize that peripheral nerve injury affects sclerotic changes in the alveolar bone. This study aimed to evaluate the effect of BDNF on osteogenesis using in vitro osteoblast-lineage cell culture and an in vivo rat osteotomy model...
2017: PloS One
https://www.readbyqxmd.com/read/28062177/maxillomandibular-advancement-for-obstructive-sleep-apnea-syndrome-treatment-long-term-results
#2
Aurélie Vigneron, Renaud Tamisier, Emmanuelle Orset, Jean-Louis Pepin, Georges Bettega
PURPOSE: We evaluated the long term effectiveness of maxillomandibular advancement (MMA) for OSAS treatment patients. This retrospective study reviewed the patients treated by MMA for OSAS between 1995 and 2009. They were evaluated by complete polysomnography, cephalometry and quality of life questionnaire. The minimum follow up was 3 years. Success rate was defined by an IAH <10 with at least a 50% reduction. MATERIAL AND METHODS: 88 patients had MMA during this period...
December 7, 2016: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/28056334/immediate-microsurgical-bone-and-nerve-reconstruction-in-the-irradiation-treated-patient-a-case-report
#3
Ramzey Tursun, J Marshall Green
Microsurgical reconstructive techniques have revolutionized the treatment of large head and neck defects. These defects were once forever life altering because of the considerable morbidity to both the form and function of the patient. As time has progressed, microsurgical technique has improved dramatically and has become institutionalized in our training programs. Free flap outcomes in head and neck reconstruction have improved dramatically, and optimization of these outcomes is now key. One overlooked area has been neurosensory reconstruction...
December 11, 2016: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28056140/benefits-and-limitations-of-entry-level-3-dimensional-printing-of-maxillofacial-skeletal-models
#4
Alex T Legocki, Andrew Duffy-Peter, Andrew R Scott
Importance: A protocol for creating exceptionally low-cost 3-dimensional (3-D) maxillofacial skeletal models does not require proficiency with computer software or intensive labor. Small and less affluent centers can produce models with little loss in accuracy and clinical utility. Objectives: To highlight the feasibility and methods of introducing in-house, entry-level additive manufacturing (3-D printing) technology to otolaryngologic craniofacial reconstruction and to describe its clinical applications and limitations, including a comparison with available vendor models...
January 5, 2017: JAMA Otolaryngology—Head & Neck Surgery
https://www.readbyqxmd.com/read/28042257/accuracy-of-cone-beam-computed-tomography-in-defining-spatial-relationships-between-third-molar-roots-and-inferior-alveolar-nerve
#5
Roberto Pippi, Marcello Santoro, Ferdinando D'Ambrosio
OBJECTIVE: Cone-beam computed tomography (CBCT) has been proposed in surgical planning of lower third molar extraction. The aim of the present study was to assess the reliability of CBCT in defining third molar root morphology and its spatial relationships with the inferior alveolar nerve (IAN). MATERIALS AND METHODS: Intraoperative and radiographic variables of 74 lower third molars were retrospectively analyzed. Intraoperative variables included IAN exposure, number of roots, root morphology of extracted third molars, and presence/absence of IAN impression on the root surface...
October 2016: European Journal of Dentistry
https://www.readbyqxmd.com/read/28041843/predictive-value-of-panoramic-radiography-for-injury-of-inferior-alveolar-nerve-after-mandibular-third-molar-surgery
#6
Naichuan Su, Arjen van Wijk, Erwin Berkhout, Gerard Sanderink, Jan De Lange, Hang Wang, Geert J M G van der Heijden
PURPOSE: The purpose of the present systematic review was to assess the added value of panoramic radiography in predicting postoperative injury of the inferior alveolar nerve (IAN) in the decision-making before mandibular third molar (MM3) surgery. MATERIALS AND METHODS: MEDLINE and EMBASE were searched electronically to identify the diagnostic accuracy of studies that had assessed the predictive value of 7 panoramic radiographic signs, including root-related signs (darkening of the root, deflection of the root, narrowing of the root, and dark and bifid apex of the root) and canal-related signs (interruption of the white line of the canal, diversion of the canal, and narrowing of the canal) for IAN injury after MM3 surgery...
December 15, 2016: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28041759/numb-chin-syndrome-a-harbinger-of-tumor-progression-or-relapse
#7
Namasivayam Balamurugan, S V Arathisenthil, Subramanian Senthilkumaran, Ponniah Thirumalaikolundusubramanian
Numb chin syndrome (NCS) is a rare yet potentially ominous sensory neuropathy in the distribution of the mental or inferior alveolar nerve characterized by unilateral hypoesthesia over the lower lip, chin and occasionally gingival mucosa. Recognizing NCS is clinically important as this may be a subtle sign of occult malignancy progression or heralding the relapses. It may also occur in benign disease, both systemic and dental in origin. Current expert opinion is that patients with NCS without apparent cause should be assumed to have a malignant etiology until proven otherwise Lossos and Siegal (1992) [1]...
December 1, 2016: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28025626/mandibular-canal-widening-and-bell-s-palsy-sequelae-of-perineural-invasion-in-oral-cancer
#8
Gopinath Thilak Parepady Sundar, Vishwanath Sherigar, Sameep S Shetty, Shree Satya, Sourabh M Gohil
Perineural invasion is an underrecognized route of metastatic spread along the nerve bundles within the nerve sheath into the surrounding tissues. It hinders the ability to establish local control as tumour cells can traverse along nerve tracts well beyond the extent of any local invasion rendering them inoperable and unresectable. Perineural invasion is a marker of poor prognosis. Oral submucous fibrosis with oral cancer constitutes a clinicopathologically distinct disease. Our case highlights an enigmatic presentation of oral submucous fibrosis and its coexistence with oral cancer presenting with unusual neurological disturbance of the inferior alveolar nerve and facial nerve and diffuse widening of the mandibular canal...
2016: Case Reports in Dentistry
https://www.readbyqxmd.com/read/28025370/prognosis-after-surgical-treatment-of-trigeminal-neuropathy-with-a-pga-c-tube-report-of-10-cases
#9
Kenji Seo, Makoto Terumitsu, Yuji Inada, Tatsuo Nakamura, Keiji Shigeno, Yutaka Tanaka
OBJECTIVE: Although surgery using a polyglycolic acid-collagen (PGA-c) tube is effective for peripheral nerve injury-induced chronic hand pain, it has not been applied to trigeminal nerve lesions because of the difficult approach. We used a PGA-c tube during surgery for trigeminal neuropathy and evaluated its prognosis based on the outcomes. DESIGN: Case report. SETTING AND PATIENTS: In the dental anesthesia division of a university hospital, 11 patients with severe dysesthesia underwent surgical repair of a damaged lingual nerve (LN) or inferior alveolar nerve (IAN)...
December 2016: Pain Medicine: the Official Journal of the American Academy of Pain Medicine
https://www.readbyqxmd.com/read/28004377/die-koronektomie-eine-behandlungsoption-f%C3%A3-r-weisheitsz%C3%A3-hne-im-unterkiefer-bei-sehr-naher-lagebeziehung-zum-n-alveolaris-inferior
#10
Daniel Wolf, Tara Renton
Extractions of mandibular third molars are a common procedure in dental practice. In cases where a close anatomical relationship of the root and the inferior alveolar nerve exists, the risk of transient or even permanent nerve injury increases. Nerve injury is difficult to manage and symptoms may cause severe patient discomfort, i.e. lifelong dysesthesia, i.e. painful sensation of the lower lip and chin area on the affected side. An alternative surgical procedure is coronectomy, which has first been described 25 year ago...
2016: Swiss Dental Journal
https://www.readbyqxmd.com/read/27993447/a-safe-and-accurate-method-to-perform-esthetic-mandibular-contouring-surgery-for-far-eastern-asians
#11
A M-C Hsieh, L-K Huon, H-R Jiang, S Y-C Liu
A tapered mandibular contour is popular with Far Eastern Asians. This study describes a safe and accurate method of using preoperative virtual surgical planning (VSP) and an intraoperative ostectomy guide to maximize the esthetic outcomes of mandibular symmetry and tapering while mitigating injury to the inferior alveolar nerve (IAN). Twelve subjects with chief complaints of a wide and square lower face underwent this protocol from January to June 2015. VSP was used to confirm symmetry and preserve the IAN while maximizing the surgeon's ability to taper the lower face via mandibular inferior border ostectomy...
December 16, 2016: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/27990846/are-different-imaging-methods-affecting-the-treatment-decision-of-extractions-of-mandibular-third-molars
#12
Yifat Manor, Refael Abir, Alex Manor, Israel Kaffe
OBJECTIVES: To find the differences between treatment decisions of lower impacted third molars among experts of oral and maxillofacial surgery according to panoramic radiographic and CBCT findings. METHODS: A retrospective analysis of 62 panoramic radiographs and CBCT of lower third molars evaluated for treatment decisions by 9 independent experts of oral and maxillofacial surgery. RESULTS: Differences in interpretation of the panoramic radiography were found between surgeons...
December 18, 2016: Dento Maxillo Facial Radiology
https://www.readbyqxmd.com/read/27933616/efficacy-of-preoperative-ibuprofen-and-meloxicam-on-the-success-rate-of-inferior-alveolar-nerve-block-for-teeth-with-irreversible-pulpitis
#13
Yazdan Shantiaee, Sahar Javaheri, Amir Movahhedian, Sarah Eslami, Omid Dianat
OBJECTIVE: The purpose of this study was to determine whether premedication with ibuprofen or meloxicam increases the success rate of anaesthesia in teeth with irreversible pulpitis. MATERIALS AND METHODS: In this parallel, double-blind clinical trial, 92 patients diagnosed with irreversible pulpitis were randomly divided into four groups of 23 patients. The first group (the no-premedication group) received no premedication, the second group (the meloxicam group) received 7...
December 8, 2016: International Dental Journal
https://www.readbyqxmd.com/read/27893553/healing-effects-of-platelet-rich-plasma-on-peripheral-nerve-injuries
#14
Farshid Bastami, Peyman Vares, Arash Khojasteh
Regeneration of peripheral nerve injuries (PNIs) has been a major challenging issue in regenerative medicine and tissue engineering. Inferior alveolar nerve and lingual nerve injuries are the major difficulties and complications of oral surgeries following dental implant placement, etc. The aim of this study was to systematically review the effects of platelet-rich plasma (PRP) on the regeneration of PNIs. Medline NCBI databases were searched for related articles up to and including May 2016. Being published in English papers, use of PRP in peripheral nerve regeneration, in vivo studies, and having histological evaluations was the inclusion criteria...
November 23, 2016: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/27878463/tracking-of-the-inferior-alveolar-nerve-its-implication-in-surgical-planning
#15
Jimoh O Agbaje, Elke Van de Casteele, Ahmed S Salem, Dickson Anumendem, Ivo Lambrichts, Constantinus Politis
OBJECTIVES: The objective of the study is to assess the correlation between the mandibular canal tracing done on cone beam CT (CBCT) data, with the size, shape, and position of the neurovascular bundle (NB) obtained by magnetic resonance imaging (MRI). MATERIAL AND METHODS: Six human cadaver mandibles were scanned with a CBCT Promax® scanner (Planmeca, Helsinki, Finland) and with an Ingenia® 3.0 T MR system (Philips, Amsterdam, The Netherlands). The NB was segmented from the MRI dataset, while the mandibular canal (MC) tracing was done on the CBCT images...
November 22, 2016: Clinical Oral Investigations
https://www.readbyqxmd.com/read/27858076/-preliminary-study-of-simplant-software-in-mandibular-molar-implantation
#16
Tian-Hong Tang, Meng Song, Xiao-Yong Niu, Jin-Song Pan
PURPOSE: The purpose of the study was to investigate the clinical effect and implementation method of mandibular molar implantation using a CT machine combined with Simplant software so as to provide a safer and more reliable method for preoperative preparation of mandibular molar implantation. METHODS: CT/cone-beam CT (CBCT) examinations were applied among 10 cases selected into the study. The Simplant software was used to measure the distances between implantation point center and superior wall of inferior alveolar nerve canal (H1), buccolingual diameter (H2), mesiodistal diameter (H3), ginginal thickness(H4) and occlusal distance (H5)...
August 2016: Shanghai Kou Qiang Yi Xue, Shanghai Journal of Stomatology
https://www.readbyqxmd.com/read/27857894/buccolingual-course-of-the-inferior-alveolar-canal-in-different-mental-foramen-locations-a-cone-beam-computed-tomography-study-of-an-iranian-population
#17
Atieh Safaee, Sanam Mirbeigi, Fatemeh Ezoddini, Leila Khojastepour, Alireza Navab-Azam
CONTEXT: Better understanding of the anatomical location and course of the mandibular canal is necessary to avoid damaging inferior alveolar nerve. AIMS: The aim of this study was to investigate the buccolingual course of the inferior alveolar canal (IAC) in different mental foramen locations, using cone beam computed tomography. MATERIALS AND METHODS: Three hundred and twelve hemimandibular images were evaluated in this study. The location of mental foramen in relation to the apices of mandibular premolar and molar teeth were recorded...
October 2016: International Journal of Applied and Basic Medical Research
https://www.readbyqxmd.com/read/27847733/post-traumatic-and-postoperative-neurosensory-deficits-of-the-inferior-alveolar-nerve-in-mandibular-fracture-a-prospective-study
#18
Sunil Yadav, Hitesh Chander Mittal, Sunita Malik, Vikas Dhupar, Akash Sachdeva, Vijaylaxmy Malhotra, Gurdarshan Singh
OBJECTIVES: We evaluated and recorded post-traumatic and postoperative neurosensory deficits of the inferior alveolar nerve (IAN) in mandibular fracture in order to identify associated risk factors. MATERIALS AND METHODS: This was a prospective cohort study composed of 60 patients treated for mandibular fracture. The primary study variable was the change between the post-traumatic IAN neurosensory examination score and the score after fracture reduction. Risk factors were categorized as demographic, anatomic, fracture displacement, and treatment...
October 2016: Journal of the Korean Association of Oral and Maxillofacial Surgeons
https://www.readbyqxmd.com/read/27842729/comparison-of-cone-beam-computed-tomography-and-osteometric-examination-in-preoperative-assessment-of-the-proximity-of-the-mandibular-canal-to-the-apices-of-the-teeth
#19
Sadaf Adibi, Maryam Paknahad
The risk of postoperative neurosensory impairment after extraction of a third molar will be greater if the inferior alveolar nerve is in close proximity to the apices of the root. Precise preoperative evaluation of the relative positions of the nerve and the mandibular apices is important to protect the nerve from mechanical irritation. The aim of this study was to assess the accuracy of cone-beam computed tomography (CT) in the identification of the positional relations of the mandibular third molar and the inferior alveolar canal using Rood's criteria...
November 11, 2016: British Journal of Oral & Maxillofacial Surgery
https://www.readbyqxmd.com/read/27834417/inferior-alveolar-nerve-block-for-the-treatment-of-teeth-presenting-with-irreversible-pulpitis-a-systematic-review-of-the-literature-and-meta-analysis
#20
Stefano Corbella, Silvio Taschieri, Francesco Mannocci, Eyal Rosen, Igor Tsesis, Massimo Del Fabbro
OBJECTIVE: The objective of the present systematic review was to evaluate, in patients with irreversible pulpitis affecting mandibular posterior teeth, if premedication with nonsteroidal anti-inflammatory drugs can increase the efficacy of inferior alveolar nerve block (IANB) if compared to placebo administration; if one anesthetic agent is more effective than another; if 1.8 mL injection is more effective than 3.6 mL injection to increase the efficacy of IANB; and if supplementary buccal injection is able to increase the efficacy of IANB as compared to a negative control/placebo group...
November 10, 2016: Quintessence International
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