Maxillary and Mandibular Split Crest Technique with Immediate Implant Placement: A 5-Year Cone Beam Retrospective Study

2021 ◽  
Vol 36 (5) ◽  
pp. 999-1007
Author(s):  
Roberto Crespi ◽  
Paolo Toti ◽  
Ugo Covani ◽  
Giovanni Crespi ◽  
Giovanni-Battista Menchini-Fabris
Keyword(s):  
Retrospective Study ◽  
Cone Beam ◽  
Implant Placement ◽  
Immediate Implant

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 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 Clinical efficacy of mineralized collagen (MC) versus anorganic bovine bone (Bio-Oss) for immediate implant placement in esthetic area: a single-center retrospective study

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Yan Dai ◽  
Jin Xu ◽  
Xiao-Hui Han ◽  
Fu-Zhai Cui ◽  
Dong-Sheng Zhang ◽  
...  
Keyword(s):  
Patient Satisfaction ◽  
Retrospective Study ◽  
Survival Rate ◽  
Clinical Efficacy ◽  
Bovine Bone ◽  
Implant Placement ◽  
Significant Difference ◽  
Immediate Implant ◽  
Esthetic Area ◽  
Mineralized Collagen

Abstract Background The purpose of this retrospective study was to evaluate the clinical efficacy of mineralized collagen (MC) versus anorganic bovine bone (Bio-Oss) for immediate implant placement in esthetic area. Methods Medical records of Department of Oral and Maxillofacial Surgery of Shandong Provincial Hospital were screened for patients who had been treated with immediate implant implantation in the esthetic area using either MC (Allgens®, Beijing Allgens Medical Science and Technology Co., Ltd., China) or Bio-Oss (Bio-Oss®, Geistlich Biomaterials, Wolhusen, Switzerland), between January 2018 and December 2019. All patients fulfilling the in-/exclusion criteria and following followed for a minimum period of 1 year after surgery were enrolled into the presented study. Implant survival rate, radiographic, esthetic and patient satisfactory evaluations were performed. Results Altogether, 70 patients were included in the study; a total of 80 implants were inserted. All implants had good initial stability. The survival rate of implants was 100% at 1-year follow-up. The differences in horizontal and vertical bone loss between the MC group (0.72 ± 0.26 mm, 1.62 ± 0.84 mm) and the Bio-Oss group (0.70 ± 0.52 mm, 1.57 ± 0.88 mm) were no significant difference statistically no significant 6 months after permanent restoration. Similar results occurred at 12 months after permanent restoration functional loaded. Clinical acceptability defined by pink esthetic score (PES) ≥ 6 (6.07 ± 1.62 vs. 6.13 ± 1.41) was not significantly different between groups. Patient satisfaction estimated by visual analog scale (VAS) was similar (8.56 ± 1.12 vs. 8.27 ± 1.44), and the difference was no significant difference between the two groups. Conclusions The biomimetic MC showed a similar behaviour as Bio-Oss not only in its dimensional tissues changes but also in clinical acceptability and patient satisfaction. Within the limitations of this study, these cases show that MC could be considered as an alternative bone graft in IIP

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.

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