Determination of Implant Position for Immediate Implant Placement in Maxillary Central Incisors Using Palatal Soft Tissue Landmarks

2014 ◽  
Vol 29 (3) ◽  
pp. 627-633 ◽  
Author(s):  
Shin-Hye Chung ◽  
Young-Seok Park ◽  
Seung-Hwan Chung ◽  
Won-Jun Shon
Keyword(s):  
Soft Tissue ◽  
Implant Position ◽  
Implant Placement ◽  
Immediate Implant

scholarly journals Exploring Effectiveness of Computer-Aided Planning in Implant Positioning for a Single Immediate Implant Placement

2016 ◽  
Vol 42 (3) ◽  
pp. 233-239 ◽  
Author(s):  
Alexander R. Edelmann ◽  
Bashir Hosseini ◽  
Warren C. Byrd ◽  
John S. Preisser ◽  
Donald A. Tyndall ◽  
...  
Keyword(s):  
Small Volume ◽  
Implant Position ◽  
Box Plots ◽  
Implant Positioning ◽  
Implant Placement ◽  
Computer Aided ◽  
Immediate Implants ◽  
Immediate Implant ◽  
Cone Beam Computerized Tomography ◽  
Computer Aided Planning

The value of computer-aided implant planning using cone-beam computerized tomography (CBCT) for single immediate implants was explored. Eighteen patients requiring extraction of a tooth followed by a single immediate implant were enrolled. Small volume preoperative CBCT scans were used to plan the position of the implant. A taper screwed–type implant was immediately placed into a fresh socket using only the final 1 or 2 drills for osteotomy. Postoperative CBCTs were used for the analysis of actual implant placement positioning. Measurements of the planned and the actual implant position were made with respect to their position relative to the adjacent teeth. Mesio-distal displacements and the facial-lingual deviation of the implant from the planned position were determined. Changes in the angulation of the planned and actual implant position in relation to the clinical crown were also measured. To statistically summarize the results, box plots and 95% CIs for means of paired differences were used. The analysis showed no statistical difference between the planned position and final implant placement position in any measurement. The CBCT scans coupled with the computer-aided implant planning program along with a final 1-to-2 drill protocol may improve the accuracy of single immediate implant placement for taper screwed–type implants.

scholarly journals Analysis of the Sagittal Root Angle and Its Correlation With Hard and Soft Tissue Indices in Anterior Teeth for Immediate Implant Evaluation - A Retrospective Study

2021 ◽  
Author(s):  
Mengru Shi ◽  
Xiaoshuang Wang ◽  
Peisheng Zeng ◽  
Haiwen Liu ◽  
Zhuohong Gong ◽  
...  
Keyword(s):  
Soft Tissue ◽  
Alveolar Bone ◽  
Bone Thickness ◽  
Root Angle ◽  
Implant Placement ◽  
Anterior Teeth ◽  
Immediate Implant ◽  
Palatal Bone ◽  
Additional Reference ◽  
Plaster Models

Abstract Background: To assess the root angle characteristics of maxillary incisors, and to analyze the relationship between the root angle and other implant-related anatomical indices to use the sagittal root angle as an index for immediate implant evaluation and design. Methods: A random sample consisting of 400 cone-beam computed tomography (CBCT) images and 65 maxillary plaster models were selected for the present study. CBCT and stereolithography (STL) scan images were imported as DICOM files into coDiagnostiX software for matching the hard and soft tissue. The angle between the long axis of the anterior tooth and the corresponding alveolar bone and implant-related hard and soft tissue indices were measured in the sagittal section. Descriptive statistics, frequency analysis, multi-level comparisons, and correlation analyses were performed. Results: The average sagittal root angles were 15° at the central incisor and 19° at the lateral incisor. The root angle in males was significantly larger than that in females, and increased with age. The largest angle, 22.35º, was found in the lateral incisors of the oldest (> 50 years old) male group. The root angle was found to correlate with coronal buccal bone thickness, coronal palatal bone thickness, apical buccal bone thickness, palatal bone thickness, and the below apex bone thickness. Conclusions: The sagittal root angle could reflect the distribution of other implant-related anatomical indices, which may provide additional reference for the evaluation of immediate implant placement.

scholarly journals Immediate Implant Placement and Provisionalization in the Esthetic Zone Revisited: The Marginal Migration Concept (MMC)

2020 ◽  
Vol 10 (24) ◽  
pp. 8944
Author(s):  
Konstantinos Valavanis ◽  
Ioannis Vergoullis ◽  
Michalis Papastamos ◽  
Henry Salama
Keyword(s):  
Risk Factors ◽  
Soft Tissue ◽  
Extraction Socket ◽  
Implant Placement ◽  
Immediate Implant

Immediate implant placement and provisionalization in the esthetic zone is a desirable approach that presents several advantages but at the same time embosses several risk factors that can lead to sever esthetic complications. The purpose of this article was to propose a new protocol that could allow for the maintenance and even the improvement of the hard and soft tissue topography, leading to superior esthetic results. The proposed protocol, when certain criteria are met, could be applied even for cases where the extraction socket morphology is currently proposed as a contra-indication for immediate implant placement and provisionalization.

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