scholarly journals Lateralization Technique and Inferior Alveolar Nerve Transposition

2016 ◽  
Vol 2016 ◽  
pp. 1-10 ◽  
Author(s):  
Angélica Castro Pimentel ◽  
Marco Antonio Sanches ◽  
Gabriel Cardoso Ramalho ◽  
Caio Vinicius Roman-Torres ◽  
Marcello Roberto Manzi ◽  
...  
Keyword(s):  
Bone Resorption ◽  
Success Rate ◽  
Inferior Alveolar Nerve ◽  
Primary Stability ◽  
Mandibular Canal ◽  
Guided Bone Regeneration ◽  
Short Implants ◽  
Appositional Bone ◽  
Treatment Alternatives ◽  
Nerve Transposition

Bone resorption of the posterior mandible can result in diminished bone edge and, therefore, the installation of implants in these regions becomes a challenge, especially in the presence of the mandibular canal and its contents, the inferior alveolar nerve. Several treatment alternatives are suggested: the use of short implants, guided bone regeneration, appositional bone grafting, distraction osteogenesis, inclined implants tangential to the mandibular canal, and the lateralization of the inferior alveolar nerve. The aim was to elucidate the success rate of implants in the lateralization technique and in inferior alveolar nerve transposition and to determine the most effective sensory test. We conclude that the success rate is linked to the possibility of installing implants with long bicortical anchor which favors primary stability and biomechanics.

scholarly journals Immediate Loading of One-Piece Implants in Conjunction with a Modified Technique of Inferior Alveolar Nerve Lateralization: 10 Years Follow-Up

2014 ◽  
Vol 7 (1) ◽  
pp. 55-61 ◽  
Author(s):  
Riham Eldibany ◽  
Joaquin G. Rodriguez
Keyword(s):  
Bone Resorption ◽  
Inferior Alveolar Nerve ◽  
Primary Stability ◽  
Mandibular Canal ◽  
Radiographic Examination ◽  
Great Success ◽  
Modified Technique ◽  
Anterior Teeth ◽  
Osseointegrated Implants ◽  
Immediate Implantation

This report describes a treatment modification for a patient presented with severely resorbed bilateral edentulous posterior mandible and mobility of the anterior teeth. There was less than 8 mm of bone between the crest of the alveolar ridge and the mandibular canal as revealed by radiographic examination. A modified technique for inferior alveolar nerve lateralization (IANL) in conjunction with ridge expansion was performed using threaded bone expanders, which allowed for better primary stability and placing longer implants. A total of four postextraction implants were in the anterior region of the mandible. The mandible received a total of nine one-piece implants to allow for immediate nonfunctional loading. The definitive ceramometallic prosthesis was delivered 3 months postoperatively. The 10 years clinical and radiographic assessment showed minimal bone resorption around osseointegrated implants. One-piece implants showed great success rate and minimal bone resorption following the modified technique of IANL and immediate implantation.

Computed tomography for the assessment of the potential risk following implant placement in fresh extraction sites in the posterior mandible

2020 ◽  
Author(s):  
Bahaa Haj Yahya ◽  
Gavriel Chaushu ◽  
Yafit Hamzani
Keyword(s):  
Computed Tomography ◽  
High Risk ◽  
Survival Rates ◽  
Inferior Alveolar Nerve ◽  
Primary Stability ◽  
Mandibular Canal ◽  
Anatomical Structures ◽  
Background Factors ◽  
Second Molar ◽  
Immediate Implants

Background and purpose: Immediate implants placement (IIP) are considered a reliable procedure, with survival rates of 94.9% to 98.4%. Nevertheless, in the posterior mandible it poses high risk of damage to anatomical structures. The aim of this study was to determine the risk of anatomical structures injury associated with IIP in the posterior mandible based on apical primary stability, respecting a safe distance from inferior alveolar nerve (IAN) and lingual plate. Moreover, to evaluate the influence of different factors on those risks. Materials and methods: Pre-extraction cone beam computed tomography (CBCT) scans of 100 patients were retrospectively analyzed. Measurements were taken from tooth apices to lingual plate and to mandibular canal. Values of <4mm of the former and <6mm of the later categorized as considerable risk. Values of <2mm at both measurements considered as high risk. Two-sided p values <0.05 were considered statistically significant.  Results: Mean root-to-alveolar canal (RAC) distance was 7.6±2.7mm in the first molar, 6.5±3mm in second premolar and 5.4±3 mm in the second molar ( p <0.005). Mean distance to the outer lingual cortex (DLC) was 3.9±2.1mm in the first molar and 3.2±0.1mm in the second molar. Thus, second molars were at the higher risk of inferior alveolar nerve injury and lingual plate perforation during IIP. Background factors associated with higher IIP risk were female sex and age <40 years. Conclusions: In the mandible, the anatomic risk posed by IIP is greatest for second molars and lowest for first molars. Several background factors affect the distances between root apices and the mandibular canal.

In-block lateralization as a new technique for mobilization of the inferior alveolar nerve: a technique case series

2020 ◽  
Author(s):  
Marcos Augusto Tomazi ◽  
Alexandre da Silveira Gerzson ◽  
Angelo Menuci Neto ◽  
André Luciano Pasinato da Costa
Keyword(s):  
Treatment Options ◽  
Inferior Alveolar Nerve ◽  
Case Series ◽  
New Technique ◽  
Autogenous Bone ◽  
Minimal Risk ◽  
Short Implants ◽  
Bone Atrophy ◽  
A New Technique ◽  
Number Of Treatment

The edentulous atrophic posterior mandible is often a great challenge for implant rehabilitation. Although a number of treatment options have been proposed, including the use of short implants and surgical grafting techniques, in cases of severe bone atrophy, techniques for mobilization of the inferior alveolar nerve (IAN) have been shown to be efficient, with good results. Four female patients underwent IAN lateralization for prosthetic rehabilitation of the posterior mandible from 2013 to 2019, with 1 year to 5 years and 4 months of follow-up. This case series describes a new technique for mobilization of the IAN, named in-block lateralization, to facilitate access to the IAN and to reduce nerve manipulation. The implant is immediately installed (allowing nerve lateralization in unitary spaces) and the original mandibular anatomy is restored with autogenous bone from the original bed during the same surgical procedure. When well indicated and well performed, this new approach provides better and easier visualization of the IAN as well as safer manipulation aiming to achieve good results for implant stability and minimal risk of neurosensory disturbances, allowing rehabilitation even in unitary spaces.

scholarly journals Comparative radiographic and resonance frequency analyses of the peri-implant tissue after dental implants placement using flap and flapless techniques: An experimental study on domestic pigs

2013 ◽  
Vol 70 (6) ◽  
pp. 586-594 ◽  
Author(s):  
Zoran Vlahovic ◽  
Branko Mihailovic ◽  
Zoran Lazic ◽  
Mileta Golubovic
Keyword(s):  
Bone Resorption ◽  
Resonance Frequency ◽  
Dental Implants ◽  
Dental Implant ◽  
Surgical Techniques ◽  
Primary Stability ◽  
Implant Stability ◽  
Domestic Pigs ◽  
Flap Technique ◽  
Implant Placement

Background/Aim. Flapless implant surgery has become very important issue during recent years, mostly thanks to computerization of dentistry and software planning of dental implants placements. The aim of this study was to compare flap and flapless surgical techniques for implant placement through radiographic and radiofrequency analyses. Methods. The experiment was made in five domestic pigs. Nine weeks following domestic pigs teeth extraction, implants were placed, on the right side using surgical technique flap, and flapless on the left side. Digital dental Xrays were applied to determine primary dental implant stability quality (ISQ). At certain intervals, not later than three months, the experimental animals were sacrificed, and just before it, control X-rays were applied to measure dental implants stability. Results. Radiographic analysis showed that peri-implant bone resorption in the first 4 weeks following placement implants with flap and flapless surgical techniques was negligible. After the 3 months, mean value of peri-implant bone resorption of the implants placed using flap technique was 1.86 mm, and of those placed using flapless technique was 1.13 mm. In relation to the primary dental implant stability in the first and second week there was an expected decrease in ISQ values, but it was less expressed in the dental implants placed using the flapless technique. In the third week the ISQ values were increased in the dental implants placed by using both techniques, but the increase in flapless implant placement was higher (7.4 ISQ) than in flap implant placement (1.5 ISQ). The upward trend continued in a 4- week period, and after 3 months the dental implant stability values in the implants placed using flap technique were higher than the primary stability for 7.1 ISQ, and in the implants placed using flapless technique were higher comparing to the primary stability for 10.1 ISQ units. Conclusion. Based on the results of radiographic and resonance frequency analyses it can be concluded that the flapless technique in surgical implants placemat, leads to better results.

scholarly journals Mandibular Canal Widening and Bell’s Palsy: Sequelae of Perineural Invasion in Oral Cancer

2016 ◽  
Vol 2016 ◽  
pp. 1-4
Author(s):  
Gopinath Thilak Parepady Sundar ◽  
Vishwanath Sherigar ◽  
Sameep S. Shetty ◽  
Shree Satya ◽  
Sourabh M. Gohil
Keyword(s):  
Oral Cancer ◽  
Perineural Invasion ◽  
Oral Submucous Fibrosis ◽  
Inferior Alveolar Nerve ◽  
Mandibular Canal ◽  
Distinct Disease ◽  
Nerve Tracts ◽  
Submucous Fibrosis ◽  
Neurological Disturbance ◽  
Shed Light

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. The objective of this case report is to enumerate the significance of perineural invasion in determining the course of the disease and necessitate the need for future studies that can shed light on molecular mediators and pathogenesis of perineural spread.

scholarly journals Inferior Alveolar Nerve Transposition Using a Piezosurgery Device with Simultaneous Implant Insertion

2012 ◽  
Vol 6 (3) ◽  
pp. 303-306 ◽  
Author(s):  
Lucas Martins de Castro-Silva ◽  
Marcio de Moraes ◽  
Valfrido Antonio Pereira-Filho ◽  
Mário Francisco Real Gabrielli
Keyword(s):  
Inferior Alveolar Nerve ◽  
Nerve Transposition

scholarly journals Evaluation of the Relationship between Mandibular Third Molar and Mandibular Canal by Different Algorithms of Cone-beam Computed Tomography

2014 ◽  
Vol 15 (6) ◽  
pp. 740-745
Author(s):  
Mojdeh Mehdizadeh ◽  
Navid Ahmadi ◽  
Mahsa Jamshidi
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
Inferior Alveolar Nerve ◽  
Third Molar ◽  
Mandibular Canal ◽  
Cross Sectional Study ◽  
Cone Beam ◽  
Cross Sectional ◽  
Mandibular Third Molar ◽  
The Relationship

ABSTRACT Objectives Exact location of the inferior alveolar nerve (IAN) bundle is very important. The aim of this study is to evaluate the relationship between the mandibular third molar and the mandibular canal by cone-beam computed tomography. Study design This was a cross-sectional study with convenience sampling. 94 mandibular CBCTs performed with CSANEX 3D machine (Soredex, Finland) and 3D system chosen. Vertical and horizontal relationship between the mandibular canal and the third molar depicted by 3D, panoramic reformat view of CBCT and cross-sectional view. Cross-sectional view was our gold standard and other view evaluated by it. Results There were significant differences between the vertical and horizontal relation of nerve and tooth in all views (p < 0.001). Conclusion The results showed differences in the position of the inferior alveolar nerve with different views of CBCT, so CBCT images are not quite reliable and have possibility of error. How to cite this article Mehdizadeh M, Ahmadi N, Jamshidi M. Evaluation of the Relationship between Mandibular Third Molar and Mandibular Canal by Different Algorithms of Cone-beam Computed Tomography. J Contemp Dent Pract 2014;15(6):740-745.

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