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Inferior alveolar nerve

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https://www.readbyqxmd.com/read/28217540/correlating-the-clinical-assessment-of-impacted-mandibular-third-molars-with-panoramic-radiograph-and-intraoral-periapical-radiograph
#1
P Vani Priya, Fazil A Nasyam, M Ramprasad, Narendra V Penumatsa, Syed Akifuddin, Sandeep
AIMS AND OBJECTIVES: This study was conducted to compare the clinical assessment of impacted third molars of mandible with panaromic radiograph (OPG) and intraoral periapical radiograph (IOPA) and to assess the efficacy of IOPA and. Moreover, we corroborated the OPG and IOPA findings of impacted mandiblar third molar root apex to inferior alveolar canal. MATERIALS AND METHODS: A total of 200 patients with pericoronitis were examined who were indicated for surgical extraction, among which 50 patients were selected for the study...
December 2016: Journal of International Society of Preventive & Community Dentistry
https://www.readbyqxmd.com/read/28215852/lingual-nerve-measurements-in-cadaveric-dissections-clinical-applications
#2
Somsak Sittitavornwong, Michael Babston, Douglas Denson, Steven Zehren, Jonathan Friend
PURPOSE: Lingual nerve (LN) injury is quite prevalent despite its long-known anatomic course. The purpose of this study was to accurately predict the LN pathway by identifying and measuring close anatomic landmarks; these measurements should help lessen the incidence of LN injury. MATERIALS AND METHODS: LN dissection was carried out on 15 halved cadaver skulls (total, 28 specimens). RESULTS: On average, the LN position was approximately 7 mm below the alveolar crest at the distal end of the mandibular second molar, 5...
January 26, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28214370/the-effect-of-pre-operative-submucosal-administration-of-tramadol-on-the-success-rate-of-inferior-alveolar-nerve-blocks-on-mandibular-molars-with-acute-irreversible-pulpitis-a-randomized-double-blind-clinical-trial
#3
A De Pedro-Muñoz, J Mena-Álvarez
AIM: This randomized, double-blind, placebo controlled, clinical trial was designed to improve the success of inferior alveolar nerve blocks (IANB) in mandibular molars with symptomatic irreversible pulpitis (SIP) by means of pre-operative submucosal administration of 50mg tramadol. METHODOLOGY: Forty-two patients with a mandibular molar diagnosed with symptomatic irreversible pulpitis took part in the trial. Patients were assigned randomly to one of two groups: tramadol group (n=21), who received 50mg tramadol in 1mL by mandibular infiltration, and a placebo group (n=21), who received 1 mL of normal saline administered to the affected tooth by the same means...
February 18, 2017: International Endodontic Journal
https://www.readbyqxmd.com/read/28212127/surgical-management-of-mandibular-intraosseous-schwannomas
#4
Anthony DeLeonibus, Bahar Bassiri Gharb, Francis Papay, James E Zins, Antonio Rampazzo
Intraosseous schwannomas of the mandible are rare tumors that usually arise from peripheral nerve sheaths of the main trunk or branches of the inferior alveolar nerve (IAN).A systematic review of the English literature through PubMed was conducted from 1945 to 2016. Forty-nine patients of mandibular intraosseous schwannomas were identified. The most common location of the tumor was the posterior mandible (61.2%). There were 28 patients in whom the tumor involved the IAN (57.1%). The most commonly performed procedures included enucleation through a mucoperiosteal flap and a bone window (73%), curettage (10%), segmental mandibulectomy (10%), and sagittal split ramus osteotomy (6%)...
February 16, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28208057/vertical-alveolar-distraction-osteogenesis-of-the-atrophic-posterior-mandible-before-dental-implant-insertion
#5
Adi Rachmiel, Dekel Shilo, Dror Aizenbud, Omri Emodi
PURPOSE: Augmentation of deficient mandibular posterior alveolar ridges poses a great challenge because of extensive bone deficiency and the presence of the inferior alveolar nerve. This study sets its focus on vertical alveolar distraction osteogenesis (ADO) at the posterior mandible before dental implant placement. MATERIALS AND METHODS: The study included 21 sites in 18 patients with severe mandibular posterior alveolar ridge deficiency. A trapezoidal osteotomy was performed, and an extraosseous alveolar distraction device was fixed and activated after a 4-day latency period at a rate of 0...
January 21, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28198442/a-novel-augmented-reality-system-for-displaying-inferior-alveolar-nerve-bundles-in-maxillofacial-surgery
#6
Ming Zhu, Fei Liu, Gang Chai, Jun J Pan, Taoran Jiang, Li Lin, Yu Xin, Yan Zhang, Qingfeng Li
Augmented reality systems can combine virtual images with a real environment to ensure accurate surgery with lower risk. This study aimed to develop a novel registration and tracking technique to establish a navigation system based on augmented reality for maxillofacial surgery. Specifically, a virtual image is reconstructed from CT data using 3D software. The real environment is tracked by the augmented reality (AR) software. The novel registration strategy that we created uses an occlusal splint compounded with a fiducial marker (OSM) to establish a relationship between the virtual image and the real object...
February 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28190451/successful-pulpal-anesthesia-for-symptomatic-irreversible-pulpitis
#7
Melissa Drum, Al Reader, John Nusstein, Sara Fowler
BACKGROUND AND OVERVIEW: Profound pulpal anesthesia after a successful inferior alveolar nerve block can be difficult to achieve when the clinical condition is a pulpal diagnosis of symptomatic irreversible pulpitis. The authors reviewed the literature as it relates to the anesthesia necessary for endodontic therapy of patients with painful, vital, mandibular teeth diagnosed with symptomatic irreversible pulpitis. CONCLUSIONS: Supplemental anesthetic techniques and medications are available that can be used to improve pulpal anesthesia for patients with the clinical condition of symptomatic irreversible pulpitis...
February 9, 2017: Journal of the American Dental Association
https://www.readbyqxmd.com/read/28186477/bilateral-sagittal-split-mandibular-osteotomies-for-enhanced-exposure-of-the-anterior-cervical-spine-in-children-technical-note
#8
Michael Karsy, Neal Moores, Faizi Siddiqi, Douglas L Brockmeyer, Robert J Bollo
The bilateral sagittal split mandibular osteotomy (BSSMO), a common maxillofacial technique for expanding the oropharynx during treatment of micrognathia, is a rarely employed but useful adjunct to improve surgical access to the ventral cervical spine in children. Specifically, it provides enhanced exposure of the craniocervical junction in the context of midface hypoplasia, and of the subaxial cervical spine in children with severe kyphosis. The authors describe their technique for BSSMO and evaluate long-term outcomes in patients...
February 10, 2017: Journal of Neurosurgery. Pediatrics
https://www.readbyqxmd.com/read/28182074/skin-and-mucosal-ischemia-as-a-complication-after-inferior-alveolar-nerve-block
#9
Pedro Christian Aravena, Camila Valeria, Nicolás Nuñez, Francisco Perez-Rojas, Cesar Coronado
The anesthetic block of the inferior alveolar nerve (IAN) is one of the most common techniques used in dental practice. The local complications are due to the failures on the anesthetic block or to anatomic variations in the tap site such as intravascular injection, skin ischemia and ocular problems. The aim of this article is to present a case and discuss the causes of itching and burning sensation, blanching, pain and face ischemia in the oral cavity during the IAN block.
November 2016: Dental Research Journal
https://www.readbyqxmd.com/read/28174060/does-additional-cone-beam-computed-tomography-decrease-the-risk-of-inferior-alveolar-nerve-injury-in-high-risk-cases-undergoing-third-molar-surgery-does-cbct-decrease-the-risk-of-ian-injury
#10
Y T Korkmaz, S Kayıpmaz, F C Senel, K T Atasoy, Z Gumrukcu
The objectives of this study were to evaluate the efficacy of additional cone beam computed tomography (CBCT) imaging on decreasing the risk of inferior alveolar nerve (IAN) injury during third molar removal in patients at high risk and to assess the surgical outcomes. The study sample included patients considered at high risk for IAN injury based on panoramic radiography (PAN) evaluation. The primary predictor was the type of imaging method (PAN only or with additional CBCT). The other variables were demographic and anatomical/radiographic factors...
February 4, 2017: International Journal of Oral and Maxillofacial Surgery
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
#11
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/28159454/inferior-alveolar-neurovascular-bundle-repositioning-a-retrospective-analysis
#12
A Sethi, S Banerji, T Kaus
In this study, patients with an insufficient height of bone for implant placement in the posterior mandible were treated by repositioning of the inferior alveolar neurovascular bundle (IANVB). These patients were divided into two groups: those in group A (n=69) did not require a bone graft and implants were placed at the time of nerve repositioning; those in group B (n=9) received bone grafts in conjunction with nerve repositioning and implants were placed upon maturation of the grafts. One hundred and twenty-one nerves were repositioned in 78 patients and 308 implants were placed...
January 31, 2017: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28152489/a-case-report-of-unusual-anatomical-variation-externalisation-of-inferior-alveolar-nerve
#13
David McAnerney, Shadi Basyuni, Vijay Santhanam
INTRODUCTION: The risks of third molar surgery have been well documented with damage to the inferior alveolar nerve (IAN) being one of the largest concerns. PRESENTATION OF CASE: This case report presents an impacted third molar with associated dentigerous cyst in which the IAN is externalised and runs along the lateral surface of the mandible. DISCUSSION: This is an extremely rare anatomical variation with most IANs lying inferior and lingually to third molars...
January 17, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28145597/proprioceptive-mechanisms-in-occlusion-stimulated-masseter-hypercontraction
#14
Xin Liu, Chunkui Zhang, Dongmei Wang, Hongyun Zhang, Xiaodong Liu, Jinlian Li, Meiqing Wang
Neurons in the trigeminal mesencephalic nucleus (Vme) have an axon that branches peripherally to innervate the orofacial region and projects centrally to the trigeminal motor nucleus (Vmo). They function as the primary neurons conveying proprioceptive messages. The present study aimed to demonstrate the presence of a periodontal-Vme-Vmo circuit and to provide evidence for its involvement in an experimental unilateral anterior crossbite (UAC) model, which can induce osteoarthritis in the temporomandibular joint...
February 1, 2017: European Journal of Oral Sciences
https://www.readbyqxmd.com/read/28142008/mandibular-sagittal-split-osteotomy-for-removal-of-impacted-mandibular-teeth-indications-surgical-pitfalls-and-final-outcome
#15
Zulma Catherine, Paolo Scolozzi
PURPOSE: The purpose of this study was to determine the indications for mandibular sagittal split osteotomy (MSSO) for the removal of impacted mandibular teeth and to evaluate the surgical pitfalls and final outcomes. PATIENTS AND METHODS: In this retrospective case-series study, radiologic and clinical data of all patients who underwent MSSO for the removal of impacted mandibular teeth between 2008 and 2015 at the University Hospitals of Geneva were reviewed. The primary outcome variables were 1) the indication for the removal of impacted mandibular teeth by MSSO, 2) complications, and 3) surgical pitfalls...
January 4, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28141647/surgical-approach-to-foreign-material-within-the-mandibular-canal-due-to-iatrogenic-factors
#16
Bo Li, Lunchang Wang, Zhihe Zhao, Hongbo Qian, Han Cui, Longjiang Li
This clinical report describes a relatively infrequent patient with inferior alveolar nerve damage caused by foreign material within the mandibular canal, which is one of the most severe complications of endodontic therapy. Although the circumstance is uncommon, it can have extremely unfavorable consequences for patients, such as anesthesia and paresthesia. In the present case, a patient suffered pain and severe paresthesia in the corresponding area after routine endodontic therapy. Several treatments were conducted to relieve the patient's symptoms, ranging from medication to tooth extraction, but all were of no avail...
January 30, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28128638/evaluation-of-the-diagnostic-efficacy-of-two-cone-beam-computed-tomography-protocols-in-reliably-detecting-the-location-of-the-inferior-alveolar-nerve-canal
#17
Aditya Tadinada, Sydney Schneider, Sumit Yadav
OBJECTIVE: Reliable three-dimensional localization of the inferior alveolar nerve canal (IANC) is valuable for a variety of dento-alveolar procedures. While conventional CBCT offers 3D information at a reasonably low dose, it is still a significant amount of radiation. In this ex-vivo study, we evaluated the ability of a 180° rotational CBCT acquisition protocol with lower number of basis projections to create a CBCT dataset for reliable localization of the IANC compared to a conventional 360° rotational CBCT acquisition...
January 27, 2017: Dento Maxillo Facial Radiology
https://www.readbyqxmd.com/read/28127498/morphometric-study-on-mandibular-foramen-and-incidence-of-accessory-mandibular-foramen-in-mandibles-of-south-indian-population-and-its-clinical-implications-in-inferior-alveolar-nerve-block
#18
R Shalini, C RaviVarman, R Manoranjitham, M Veeramuthu
The mandibular foramen is a landmark for procedures like inferior alveolar nerve block, mandibular implant treatment, and mandibular osteotomies. The present study was aimed to identify the precise location of the mandibular foramen and the incidence of accessory mandibular foramen in dry adult mandibles of South Indian population. The distance of mandibular foramen from the anterior border of the ramus, posterior border of the ramus, mandibular notch, base of the mandible, third molar, and apex of retromolar trigone was measured with a vernier caliper in 204 mandibles...
December 2016: Anatomy & Cell Biology
https://www.readbyqxmd.com/read/28125518/a-survey-of-the-opinion-and-experience-of-uk-dentists-part-2-risk-assessment-strategies-and-the-management-of-iatrogenic-trigeminal-nerve-injuries-related-to-dental-implant-surgery
#19
Zehra Yilmaz, Cemal Ucer, Edwin Scher, Jon Suzuki, Tara Renton
BACKGROUND: Dental implant-related iatrogenic injuries are proportionally increasing with dental implant surgery. This study assessed the experience of implant-related trigeminal nerve (TG) injuries among UK dentists. Risk management strategies and management of implant-related inferior alveolar nerve (IAN), mental nerve (MN), and lingual nerve injuries were investigated. METHODS: A survey was distributed among 405 dentists attending an Association of Dental Implantology (ADI) congress, of which 187 completed the survey...
January 25, 2017: Implant Dentistry
https://www.readbyqxmd.com/read/28107757/piezosurgery-a-safe-technique-for-inferior-alveolar-nerve-mobilization-in-surgical-correction-of-hemimandibular-hyperplasia-review-of-the-literature-and-case-report
#20
Amel S Eltayeb, Abdelnasir G Ahmad
INTRODUCTION: Piezoelectric bone surgery is a relatively new alternative for bone-related procedures in oral and maxillofacial surgery. It represents an innovative technique as it offers the maxillofacial surgeon the opportunity to make precise bone cuts without damaging any soft tissue and providing a blood less surgical field. Correction of facial asymmetries is still a major problem in need of an adequate solution. Neurosensory damage to the inferior alveolar nerve can be an adverse effect of surgical correction of hemimandibular hyperplasia...
December 30, 2016: International Journal of Surgery Case Reports
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