EAO‐354 / OC‐SU‐009 | Cortical tenting vs split buccal bone technique for augmentation of the posterior mandibular region

Abstract Background This study investigated the prevalence of labial bone perforation (LBP) related to the associated anatomic factors in anterior mandibular region using a virtual immediate implant placement procedure. Methods Series qualified CBCT images of 149 participants (894 teeth) were selected to analyze the assigned anatomical parameters, including concavity depth, concavity angle, torque, and deep bone thickness. Four classes of crestal and radicular dentoalveolar bone phenotypes (CRDAPs) of mandibular anterior teeth were categorized according to the thickness of dentoalveolar bone at both crestal and radicular zones. Data were adjusted for categorical (gender and CRDAP) and continuous (age, cavity angle, cavity depth, and deep bone thickness) variables using a multivariable logistic regression analysis with generalized estimating equation method. Results The overall probability of LBP after virtual implant placement was 21.6%. There is statistically significant higher prevalence of LBP at canine (28.5%) and CRDAP class II (29.2%) regions (p < 0.001). After adjusting confounding variables, CRDAP class II and class IV regions are more likely to have LBP when compared with CRDAP class I (control) regions (p < 0.01). The risk of LBP at canine site is 6.31 times more likely than at the central incisor (control) (p < 0.01). Conclusions Using a virtual immediate implant placement technique, the prevalence of LBP is significantly higher at the mandibular canine site and thin radicular dentoalveolar phenotype in the anterior mandibular region.

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RELATION BETWEEN BONE DENSITY AND PRIMARY STABILITY IN THE POSTERIOR MANDIBULAR REGION IN PATIENTS UNDERGOING DENTAL IMPLANTS TREATMENT - A RETROSPECTIVE STUDY

Journal of Long-Term Effects of Medical Implants ◽

10.1615/jlongtermeffmedimplants.2021035972 ◽

2021 ◽

Author(s):

Subhasree Rohinikumar ◽

Reshma Harikrishnan ◽

Balaji Ganesh S ◽

Ashok V

Keyword(s):

Retrospective Study ◽

Bone Density ◽

Dental Implants ◽

Primary Stability ◽

Mandibular Region

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Vertical bone augmentation of posterior mandibular region: a description of two surgical techniques

RGO - Revista Gaúcha de Odontologia ◽

10.1590/1981-8637201600030000143128 ◽

2016 ◽

Vol 64 (3) ◽

pp. 333-336

Author(s):

Adalmir Gonzaga dos Santos QUEIROZ ◽

Yuri Slusarenko da SILVA ◽

Pedro Jorge Cavalcante COSTA ◽

Flávio Wellington da Silva FERRAZ ◽

Maria da Graça NACLÉRIO-HOMEM

Keyword(s):

Bone Loss ◽

Dental Implants ◽

Case Reports ◽

Surgical Techniques ◽

The Other ◽

Bone Maturation ◽

Oral Rehabilitation ◽

Autologous Graft ◽

Mandibular Region ◽

Graft Interposition

ABSTRACT Correction of severe vertical bone deficiency in the posterior region of mandibular alveolar ridge requires surgical management if implants are scheduled and cannot have primary stability. The aim of the present study is to report two cases; one treated with alveolar osteogenesis distraction and the other with segmental osteotomy with autologous graft interposition, by describing the surgical steps as well as show the results and experiences acquired with these techniques. We opted for these methods to reconstruct the posterior mandibular region after remarkable vertical bone loss based mainly by the height and thickness of the remaining bone. Alveolar osteogenic distraction is highly advisable when vertical deficiency is severe, and if these cases are treated with the segmental osteotomy and autologous graft interposition, complications as graft failure, necrosis and resorption are more prone to occur due to insufficient vascularization. After bone maturation and bone neoformation secondary to alveolar osteogenic osteogenic distraction and segmental osteotomy with autologous graft interposition, respectively, the two presented case reports were able to securely receive dental implants. In cases of vertical bone loss of the posterior mandibular region, both surgeries currently represent the best choice for bone gain prior dental implants placement for oral rehabilitation, without technical challenges, although biological evidence to assure the superiority of one technique over the other must be further investigated.

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Segmental Mandibular Resection for Conventional Ameloblastoma

10.20944/preprints202101.0400.v1 ◽

2021 ◽

Author(s):

Georges Abi Khalil ◽

Georges Aoun ◽

Banine Khalifeh ◽

Toni Zeinoun

Keyword(s):

Bone Graft ◽

Third Molar ◽

Facial Asymmetry ◽

Treatment Choice ◽

Odontogenic Tumor ◽

Titanium Plate ◽

Mandibular Region ◽

Slow Growing ◽

Epithelial Odontogenic Tumor

Ameloblastoma is an aggressive slow growing benign epithelial odontogenic tumor usually associated with an unerupted third molar. In this report, we present the case of a 71-year-old male with a large swelling on the left mandibular region causing a remarkable facial asymmetry. After clinical, radiological, and histopathological examinations the diagnosis of conventional ameloblastoma was made. To avoid probable recurrence our treatment choice was a segmental mandibular resection with the placement of a reconstructive titanium plate to maintain the space for subsequent bone graft.

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A Case of Glandular Odontogenic Cyst in the Mandibular Region

Japanese Journal of Oral Diagnosis / Oral Medicine ◽

10.15214/jsodom.33.61 ◽

2020 ◽

Vol 33 (1) ◽

pp. 61-65

Author(s):

KOHEI FURUKAWA ◽

TOMOFUMI NARUSE ◽

KOHEI OKUYAMA ◽

SOUICHI YANAMOTO ◽

NAOKI KATASE ◽

...

Keyword(s):

Odontogenic Cyst ◽

Glandular Odontogenic Cyst ◽

Mandibular Region

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Anesthesia in the Mandibular Region

Essentials of Local Anesthesia with MCQs ◽

10.5005/jp/books/10280_8 ◽

2006 ◽

pp. 59-59

Author(s):

KG Ghorpade

Keyword(s):

Mandibular Region

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Traumatic bone cyst of mandible: a case series

Journal of Medical Case Reports ◽

10.1186/s13256-019-2220-7 ◽

2019 ◽

Vol 13 (1) ◽

Cited By ~ 1

Author(s):

Farnoosh Razmara ◽

Zahra Ghoncheh ◽

Ghazal Shabankare

Keyword(s):

Bone Cyst ◽

Clinical Signs ◽

Case Series ◽

Signs And Symptoms ◽

Radiographic Examination ◽

Radiographic Evaluation ◽

History Of ◽

Mandibular Region ◽

Clinical Signs And Symptoms ◽

Anterior Mandible

Abstract Background A traumatic bone cyst is an uncommon nonneoplastic lesion of the jaws that is considered as a “pseudocyst” because of the lack of an epithelial lining. This lesion is particularly asymptomatic and therefore is diagnosed by routine dental radiographic examination as a unilocular radiolucency with scalloped borders, mainly in the posterior mandibular region. The exact etiopathogenesis of the lesion remains uncertain, though it is often associated with trauma. Case presentation We report three Persian cases of traumatic bone cyst with different clinical and radiographic features, and we present a review of the literature to further discuss diagnostic and treatment challenges. Only one of the three patients reported a history of trauma, and despite the usual signs and symptoms of the lesion, extension of the defect to the ramus, swelling of the lingual cortex, and their unusual presence in the anterior mandible were noted in these patients. Conclusions Because features of this cyst can be varied, careful history taking and radiographic evaluation alongside the clinical signs and symptoms have a very significant role in definitive diagnosis, appropriate treatment, and accurate assessment of prognosis.

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