scholarly journals Presurgical Cone Beam Computed Tomography Bone Quality Evaluation for Predictable Immediate Implant Placement and Restoration in Esthetic Zone

2017 ◽  
Vol 2017 ◽  
pp. 1-8 ◽  
Author(s):  
Corina Marilena Cristache
Keyword(s):  
Computed Tomography ◽  
Bone Quality ◽  
Cone Beam Computed Tomography ◽  
Quality Evaluation ◽  
Multislice Computed Tomography ◽  
Cone Beam ◽  
Implant Placement ◽  
Lower Radiation Dose ◽  
Cad Cam ◽  
Immediate Implant

Despite numerous advantages over multislice computed tomography (MSCT), including a lower radiation dose to the patient, shorter acquisition times, affordable cost, and sometimes greater detail with isotropic voxels used in reconstruction, allowing precise measurements, cone beam computed tomography (CBCT) is still controversial regarding bone quality evaluation. This paper presents a brief review of the literature on accuracy and reliability of bone quality assessment with CBCT and a case report with step-by-step predictable treatment planning in esthetic zone, based on CBCT scans which enabled the clinician to evaluate, depending on bone volume and quality, whether immediate restoration with CAD-CAM manufactured temporary crown and flapless surgery may be a treatment option.

scholarly journals Classification of Sagittal Root Position and Angulation of Premolars for Immediate Implant Placement: A Cone Beam Computed Tomography Study

2020 ◽  
Author(s):  
Yalin Zhan ◽  
Miaozhen Wang ◽  
Xueyuan Cheng ◽  
Feng Liu
Keyword(s):  
Computed Tomography ◽  
Treatment Planning ◽  
Frequency Distribution ◽  
Cone Beam Computed Tomography ◽  
Cone Beam ◽  
Implant Placement ◽  
Root Position ◽  
Immediate Implant ◽  
Maxillary Premolars

Abstract Background: Sagittal root position (SRP) and thickness of buccal plate were of clinical guiding significance in implant treatment planning. The study was to classify the SRP and angulations of the maxillary and mandibular premolar to each osseous housing, and to measure the thickness of buccal plate by cone beam computed tomography (CBCT) in order to estimate the distributions and provide clinical decision support. Methods: CBCT images was reviewed on 150 patients who fulfilled the inclusion criteria. The sagittal root position and angulations of the maxillary and mandibular premolars to their respective osseous housing were evaluated and classified using CBCT images. The thickness of buccal plate at 1 mm, 3 mm, 5 mm apical to the alveolar crest was also measured. Results: The frequency distribution of SRP types indicated that, 41.67%, 51.83%, 3.67%, and 2.83% of maxillary premolars; 84.33%, 15%, 0%, and 0.67% of mandibular premolars were classified as type B, M, L, and N. The frequency distribution of angulation classifications indicated that, 20.83%, 46%, 32.17%, and 1% of maxillary premolars; 2%, 5.33%, 36.67%, and 56% of mandibular premolars were classified as class 1, 2, 3, and 4. The buccal bone thickness in most locations of premolar sites was less than 1 mm. Conclusions: The classification of clinical relevance of SRP and angulation of the premolar root to osseous housing would help for treatment planning and improving interdisciplinary communication of immediate implant placement (IIP) in the premolar region.

scholarly journals IMMEDIATE IMPLANT PLACEMENT PLANNING IN MANDIBULAR POSTERIOR REGION USING CONE BEAM COMPUTED TOMOGRAPHY.

2018 ◽  
Vol 6 (9) ◽  
pp. 544-553
Author(s):  
Manjari Chaudhary ◽  
Ajay Bhoosreddy ◽  
Apurva Patil ◽  
Akanksha Bhandari ◽  
Ashni Chatterjee ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
Posterior Region ◽  
Cone Beam ◽  
Implant Placement ◽  
Immediate Implant

scholarly journals Immediate Implant Placement in the Maxillary Aesthetic Zone: A Cone Beam Computed Tomography Study

2021 ◽  
Vol 10 (24) ◽  
pp. 5853
Author(s):  
Anna Botermans ◽  
Anna Lidén ◽  
Vinícius de Carvalho Machado ◽  
Bruno Ramos Chrcanovic
Keyword(s):  
Computed Tomography ◽  
Cortical Bone ◽  
Cone Beam Computed Tomography ◽  
Treatment Plan ◽  
Cone Beam ◽  
Tooth Position ◽  
Implant Placement ◽  
Root Position ◽  
Immediate Implant ◽  
Wall Perforation

This study aimed to investigate the factors that could be associated with the risk of labial cortical bone wall perforation with immediate implant placement (IIP) in the maxillary aesthetic zone, in a cone-beam computed tomography (CBCT) virtual study. CBCT exams from 126 qualified subjects (756 teeth) were included. Implants were virtually positioned in two different positions: in the long axis of the tooth (prosthetically-driven position) and in an ideal position in relation to adjacent anatomical structures (bone-driven position). Two different implant diameters were planned for each tooth position, namely, 3.75 and 4.3 mm for central incisors and canines, and 3.0 and 3.3 mm for lateral incisors. The incidence of perforation was nearly 80% and 5% for prosthetically- and bone-driven position, respectively. Factors associated with a higher risk of cortical bone wall perforation (bone-driven position), according to logistic regression analysis, were women, wider implants, Sagittal Root Position class IV, and decrease of the labial concavity angle. Perforation of the labial cortical bone wall can be greatly minimized when the implant is placed in a bone-driven position compared to a prosthetically-driven position. It is important to preoperatively evaluate the morphological features of the implant site for risk assessment and to individualize the treatment plan.

scholarly journals Risk Associated with Immediate Implant at Mandibular Canine and Premolars: A Cone Beam Computed Tomography (CBCT) Study

2021 ◽  
Vol 50 (4) ◽  
pp. 1047-1056
Author(s):  
Kirthiga Rameswaran ◽  
Aminah Mohd Shariff ◽  
Daniel Lim
Keyword(s):  
Computed Tomography ◽  
Nerve Injury ◽  
Cone Beam Computed Tomography ◽  
Primary Stability ◽  
Root Apex ◽  
Cone Beam ◽  
Implant Placement ◽  
Immediate Implant ◽  
Mandibular Canine ◽  
Implant Dentistry

With the evolution of implant dentistry, immediate implantation remains a challenge especially in achieving a good primary stability with avoidance of complications such as nerve injuries and lingual perforations. This study was aimed to determine the risks of nerve injury and lingual perforation following virtual implant placement at mandibular canines, mandibular first premolars and mandibular second premolars using cone beam computed tomography (CBCT) scans. From the total of 771 CBCT scans screened, 100 CBCT scans were included. Measurements were made based on the cross-section of the study teeth, that were mandibular canine, first premolar and second premolar, to obtain the distance between root apex and nerve canal as well as risk of nerve injury. A virtual implant was then placed at each site to assess the risk of lingual perforation. Generally, the distance between root apex and nerve was less than 6 mm and the highest risk of nerve injury was observed at second premolar (79.6%) followed by first premolar (45.3%) and canine (23.4%). Risk of lingual perforation following immediate implant placement was between 0.7-1.5%. The risk of nerve injury was considerably high due to insufficient root apex to nerve canal distance while the risk of lingual perforation was low.

scholarly journals Horizontal alteration of anterior alveolar ridge after immediate implant placement: A retrospective cone beam computed tomography analysis

2021 ◽  
Vol 13 (2) ◽  
pp. 117
Author(s):  
Young Keun Hyun ◽  
Chung Yun Lee ◽  
Subramanian Keerthana ◽  
Selvaponpriya Ramasamy ◽  
So-Yeon Song ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
Cone Beam ◽  
Alveolar Ridge ◽  
Implant Placement ◽  
Immediate Implant ◽  
Tomography Analysis
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