Importance of cone beam computed tomography and ridge mapping gauge in determining the residual alveolar bone width for immediate implant placement

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.

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

Case Reports in Dentistry ◽

10.1155/2017/1096365 ◽

2017 ◽

Vol 2017 ◽

pp. 1-8 ◽

Cited By ~ 1

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.

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Facial Fenestration and Dehiscence Defects Associated With Immediate Implant Placement Without Flap Elevation in Anterior Maxillary Ridge: A Preliminary Cone Beam Computed Tomography Study

The International Journal of Oral & Maxillofacial Implants ◽

10.11607/jomi.6575 ◽

2018 ◽

Vol 33 (5) ◽

pp. 1112-1118 ◽

Cited By ~ 3

Author(s):

Cho-Ying Lin ◽

Whei-Lin Pan ◽

Hom-Lay Wang

Keyword(s):

Computed Tomography ◽

Cone Beam Computed Tomography ◽

Cone Beam ◽

Implant Placement ◽

Immediate Implant ◽

Flap Elevation

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An Analysis of The Relationship between The Maxillary Molars and The maxillary sinus floor in Adult Patient Using Cone-beam Computed Tomography

10.21203/rs.2.13391/v1 ◽

2019 ◽

Author(s):

Lin Li ◽

Yifan Fu ◽

Shihui Huang ◽

Ziya Lai ◽

Chenghao Li ◽

...

Keyword(s):

Computed Tomography ◽

Maxillary Sinus ◽

Cone Beam Computed Tomography ◽

Alveolar Bone ◽

Third Molar ◽

Cone Beam ◽

Maxillary Molars ◽

Bone Width ◽

Internal Angle ◽

Vertical Relationship

Abstract Background The aim of the study was to evaluate the anatomical relationship between the maxillary molars and the maxillary sinus by using cone beam computed tomography (CBCT).Methods A database of maxillary molars were obtained from 91 adult patients by means of images of CBCT. The internal angle, the alveolar bone width, and the distance between root apex and the wall of maxillary sinus were measured by CBCT. The vertical relationship between the maxillary molars and the maxillary sinus were analysed. Vertical relationship of the maxillary sinus was further evaluated. Results The value of the internal angle of maxillary third molar is 17.2 ± 11.5°. The width of the alveolar bone of third molar is 8.2 ± 1.7mm. Type III, IV and V were the most common relationship in the first and second molars. Type V and I were most frequently observed in the first and second molars. The inner angle of the second molar is larger than that of the first molar. The maxillary first molar had the smallest mean alveolar bone width, and the third molar had the largest average. Conclusion This study will provide reference for clinical practice, especially for root canal treatment and tooth implants.

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Alveolar Bone Dimensions of Mandibular Posterior Teeth using Cone Beam Computed Tomography: A Pilot Study

Journal of Contemporary Dentistry ◽

10.5005/jp-journals-10031-1135 ◽

2016 ◽

Vol 6 (1) ◽

pp. 9-14 ◽

Cited By ~ 2

Author(s):

Varun Rajeev Kunte ◽

Ajay Ramesh Bhoosreddy ◽

Seema Ajay Bhoosreddy ◽

Atul Ashok Pandharbale ◽

Manila Rajaram Shinde ◽

...

Keyword(s):

Computed Tomography ◽

Cone Beam Computed Tomography ◽

Alveolar Bone ◽

Cone Beam ◽

Bone Augmentation ◽

Posterior Teeth ◽

Bone Width ◽

Mandibular Posterior Teeth ◽

Molar Region ◽

Bone Dimensions

ABSTRACT Aim The aim of this study was to analyze bone dimensions of the dentate posterior mandible using cone beam computed tomography (CBCT). Objectives The objectives of this study were • To measure thickness of buccal and lingual bone walls in mandibular posterior teeth using CBCT. • To measure alveolar bone width in mandibular posterior teeth using CBCT. Materials and Methods Ten CBCT scans were included in the study (n = 65 teeth). Thicknesses of buccal and lingual walls were measured at measurement point 1 (MP1) and measurement point 2 (MP2). Alveolar width was assessed at most coronal detected alveolar bone (BW1) and at superior border of mandibular canal (BW2). Vertical distance between BW1 and BW2 was measured (H). Data were tabulated and results were statistically analyzed using unpaired t test. Results The study showed that there was an increase in bone wall thickness from 1st premolar to 2nd molar for buccal and lingual alveolar plates. Lingual bone walls were thicker than buccal bone walls at MP1 and MP2 for all teeth. Bone width for premolars was considerably less than bone width of molars. Conclusion Careful preoperative analysis using CBCT is important to assess need of bone augmentation procedures. As the bone thickness and width in the molar region is more adequate, prognosis of implants placed in molar region may be better. Clinical significance Analysis of bone dimensions is of utmost importance for successful outcome of bone augmentation procedures in implant treatment. How to cite this article Kunte VR, Bhoosreddy AR, Bhoosreddy SA, Pandharbale AA, Shinde MR, Ahire BS. Alveolar Bone Dimensions of Mandibular Posterior Teeth using Cone Beam Computed Tomography: A Pilot Study. J Contemp Dent 2016;6(1):9-14.

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

International Journal of Advanced Research ◽

10.21474/ijar01/7709 ◽

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

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

Journal of Clinical Medicine ◽

10.3390/jcm10245853 ◽

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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Facial Alveolar Bone Width at the First and Second Maxillary Premolars in Healthy Patients: A Cone Beam Computed Tomography Study

Journal of Oral Implantology ◽

10.1563/aaid-joi-d-16-00195 ◽

2017 ◽

Vol 43 (4) ◽

pp. 261-265 ◽

Cited By ~ 2

Author(s):

Julio Rojo-Sanchis ◽

Jose Viña-Almunia ◽

David Peñarrocha-Oltra ◽

Miguel Peñarrocha-Diago

Keyword(s):

Computed Tomography ◽

Cone Beam Computed Tomography ◽

Alveolar Bone ◽

Oral Surgery ◽

Descriptive Analysis ◽

Cone Beam ◽

Average Width ◽

Bone Width ◽

Immediate Implants ◽

Maxillary Premolars

The purpose of this study was to analyze the thickness of the facial alveolar bone at the first and second maxillary premolars and determinate the percentage of premolars that reached 2 mm in width. A retrospective study was performed, analyzing cone beam computed tomography scans from the database of the Oral Surgery Unit of the University of Valencia. Patients with periodontal disease, orthodontic treatment, absence among the first maxillary molars, premolars with endodontic treatment, or prosthetic restorations were excluded. The facial alveolar bone width was measured at 1, 2, 3, and 5 mm apical to the vestibular bone peak. A total of 44 patients were included in the study, with 72 first premolars and 72 second premolars analyzed. A descriptive analysis was performed and the normal means were assessed using the Kolmogorov-Smirnov test. The average width of the facial alveolar bone at first and second maxillary premolars was respectively: 1.41 ± 0.50 and 1.72 ± 0.56 at 1 mm, 1.68 ± 0.72 and 2.23 ± 0.66 at 2 mm, 1.71 ± 0.89 and 2.43 ± 0.82 at 3 mm, 1.44 ± 1.00 and 2.31 ± 1.06 at 5 mm from the vestibular bone peak. The facial alveolar bone width at the second maxillary premolars was greater than at the first maxillary premolars at all points measured. This information should be taken in account when planning immediate implants. Further studies are needed to analyze bone resorption at maxillary premolars to better understand facial alveolar bone width influence in implant treatment.

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

Sains Malaysiana ◽

10.17576/jsm-2021-5004-15 ◽

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.

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