Dr. Cristalle Soman, Alanoud Almuhrij, Norah Alghusen, Faisal Abdulrahman Alsubaie, Manal Aljamal, Rasha Alrasheed


Objectives: Extraction of mandibular posterior teeth followed by immediate implant placement is considered as an optimal technique of immediate prosthetic rehabilitation. The analysis of alveolar bone dimensions with Cone Beam Computerized Tomography prior to implant placement is a prime determinant in treatment planning. Hence this preliminary study was conducted to analyze the alveolar bone dimensions in dentate mandibular posterior teeth to evaluate the available bone which can be utilized for immediate implant placements.

Materials and Methods: Retrospective data of 200 cases of full volume CBCT was procured from Riyadh Elm University (REU) database and reviewed for eligibility. A total of 10 cases were included in the study. Scans were assessed for thickness of buccal and lingual walls at 4mm below the CEJ (MP1) and at midroot level (MP2). Alveolar width was assessed at most coronal point on alveolar bone (BW1) and at superior border of mandibular canal (BW2). The height was be calculated by measuring the vertical distance between BW1 and BW2. Data was tabulated and statistically analyzed using unpaired t-test.

Results: The results of our study indicates that dimensions of buccal and lingual bone walls of all teeth at MP1 and MP2 in PM1, PM2 and M1 were statistically significant. Also only the 1st premolar (PM1) showed statistical significance with regard to dimensions at BW1 and BW2. Conclusion The present study highlights the need for further studies with larger samples which can impact the immediate implant success rates in mandibular posterior teeth.

Full Text:



Gerritsen AE, Allen PF, Witter DJ, Bronkhorst EM, Creugers NH. Tooth loss and oral health-related quality of life: a systematic review and meta-analysis. Health and Quality of Life Outcomes. 2010;8:126. doi:10.1186/1477-7525-8-126.

Singh M, Kumar L, Anwar M, Chand P. Immediate dental implant placement with immediate loading following extraction of natural teeth. National Journal of Maxillofacial Surgery. 2015;6(2):252-255. doi:10.4103/0975-5950.183864.

Singh A, Gupta A, Yadav A, Chaturvedi TP, Bhatnagar A, Singh BP. Immediate placement of implant in fresh extraction socket with early loading. Contemporary Clinical Dentistry. 2012;3(2):S219-S222. doi:10.4103/0976-237X.101099.

Braut, V., Bornstein, M., Lauber, R. & Buser, D. Bone dimensions in the posterior mandible: a retrospective radiographic study using cone beam computed tomography. Part 1 – Analysis of dentate sites. International Journal of Periodontics and Restorative Dentistry 2012; 32: 175– 184.

Janua´rio AL, Duarte WR, Barriviera M, Mesti JC, Arau´ jo MG, Lindhe J. Dimension of the facial bone wall in the anterior maxilla: a cone-beam computed tomography study. Clinical Oral Implants Research. 2011;22: 1168–1171. doi: 10.1111/j.1600-0501.2010.02086.x

Pietrokovski, J. & Massler, M. Alveolar ridge resorption following tooth extraction. Journal of Prosthetic Dentistry 1967; 17: 21–27.

Arau´ jo, M.G. & Lindhe, J. Dimensional ridge alterations following tooth extraction. An experimental study in the dog. Journal of Clinical Periodontology 2005;32: 212–218.

Arau´ jo,M.G., Sukekava, F.,Wennstro¨m, J.L. & Lindhe, J.L. Ridge alterations following implant placement in fresh extraction sockets: an experimental

study in the dog. Journal of Clinical Periodontology 2005;32: 645–652.

Tomasi, C., Sanz, M., Cecchinato, D., Pjetursson, B., Ferrus, J., Lang, N.P. & Lindhe, J. Bone dimensional variations at implants placed in fresh extraction sockets: a multilevel multivariate analysis. Clinical Oral Implants Research 2010;21: 30– 36.

Kunte VR, Bhoosreddy AR, Bhoosreddy SA, Pandharbale AA, Shinde MR, Ahire BS. Alveolar Bone Dimensions of Mandibular Posterior Teeth using Cone Beam Computerised Tomography: A Pilot study. J Contemp Dent 2016;6(1):9-14.

Grunder, U., Gracis, S. & Capelli, M. Influence of the 3‐D bone‐to‐implant relationship on esthetics. International Journal of Periodontics and Restorative Dentistry 2005 25: 113– 119.

Huynh‐Ba, G., Pjetursson, B.E., Sanz, M., Cecchinato, D., Ferrus, J., Lindhe, J. & Lang, N.P. ( 2010) Analysis of the socket bone wall dimensions in the upper maxilla in relation to immediate implant placement. Clinical Oral Implants Research 21: 37– 42.

Watanabe, H., Mohammad Abdul, M., Kurabayashi, T. & Aoki, H. Mandible size and morphology determined with CT on a premise of dental implant operation. Surgical & Radiologic Anatomy 2010; 32: 343– 349.

Chan HL, Benavides E, Yeh CY, Fu JH, Rudek IE, Wang HL. Risk assessment of lingual plate perforation in posterior mandibular region: a virtual implant placement study using cone-beam computed tomography. J Periodontol. 2011;82(1):129–35.


  • There are currently no refbacks.