Volume 24, Issue 4 (Jul 2016)                   JSSU 2016, 24(4): 276-285 | Back to browse issues page

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Frequency Distribution of Edentulous Posterior Mandibular Ridge Types using Cone Beam Computed Tomography in an Iranian Population. JSSU 2016; 24 (4) :276-285
URL: http://jssu.ssu.ac.ir/article-1-3663-en.html
Abstract:   (7381 Views)

Introduction: The existing bone is regarded as an important criteria in dental implants. In this regard, the radiographic modality is of great significance in quantifying the remaining bone, and CBCT accurately represents height and width of the existing bone. Therefore, this study aimed to evaluate the frequency distribution of the edentulous posterior mandibular ridge types using cone beam computed tomography in an Iranian population.

Methods: In this cross-sectional descriptive study, CBCT scans of 127 patients with full edentulous mandible with an average age of 61.15 were evaluated who referred to a radiology clinic in Tehran. The images were analyzed applying OnDemand3D application and bone height and width of each area were determined. To analyze the collected data, SPSS software (ver,17) was employed applying Fisher's exact test.

Results: The ridges were classified in 4 different groups (A,B+,B-w,C-w). The frequency of ridge types A and B + in male and ridge types B-w and C-w in females were demonstrated to be higher. An increase in age led to a reduction in the frequency of type A and a rise in the frequency of type C-w. The mean bone height was higher in males in all areas. In addition, the mean bone width was higher in males in all areas except for the first molar area.

Conclusions:  The study results indicated that as the age increases, the height of edentulous mandible reduces, while no significant relationship was detected between the bone width and aging. As a result, with aging the evolution of bone was held to be from type A to type C-W.

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Type of Study: Original article | Subject: Dental
Received: 2016/04/2 | Accepted: 2016/05/14 | Published: 2016/07/4

1. Arvidson K, Esselin O, Felle-Persson E, Jonsson G, Smedberg JI, Soderstrom U. Early loading of mandibular full-arch bridges screw retained after 1 week to four to five Monotype implants: 3-year results from a prospective multicentre study. Clin Oral Implants Res 2008; 19(7): 693-703.
2. Schmitt A, Zarb GA. The longitudinal clinical effectiveness of osseointegrated dental implants for single-tooth replacement. Int J Prosthodont 1993; 6(2): 197-202.
3. Bornstein MM, Halbritter S, Harnisch H, Weber HP, Buser D. A retrospective analysis of patients referred for mplant placement to a specialty clinic: indications, surgical procedures, and early failures. Int J Oral Maxillofac Implants 2008; 23(6): 1109-16.
4. Chappuis V, Engel O, Reyes M, Shahim K, Nolte LP, Buser D. Ridge alterations post-extraction in the esthetic zone: a 3D analysis with CBCT. J Dent Res 2013; 92(12 Suppl): 195S-201S.
5. Misch CE, Judy KW. Classification of partially edentulous arches for implant dentistry. Int J Oral Implantol 1987; 4(2): 7-13.
6. Mupparapu M, Singer SR. Implant imaging for the dentist. J Can Dent Assoc 2004;70(1): 32.
7. Ziegler CM, Woertche R, Brief J, Hassfeld S. Clinical indications for digital volume tomography in oral and maxillofacial surgery. Dentomaxillofac Radiol 2002; 31(2): 126-30.
8. Tepper G, Hofschneider UB, Gahleitner A, Ulm C. Computed tomographic diagnosis and localization of bone canals in the mandibular interforaminal region for prevention of bleeding complications during implant surgery. Int J Oral Maxillofac Implants 2001; 16(1): 68-72.
9. Kamburoglu K, Kilic C, Ozen T, Yuksel SP. Measurements of mandibular canal region obtained by cone-beam computed tomography: a cadaveric study. Oral Surg Oral Med Oral Pathol Oral Radiol Endod 2009; 107(2): e34-42.
10. Peck JN, Conte GJ. Radiologic techniques using CBCT and 3-D treatment planning for implant placement. J Calif Dent Assoc 2008; 36(4): 287-90.
11. Guerrero ME, Jacobs R, Loubele M, Schutyser F, Suetens P, van Steenberghe D. State-of-the-art on cone beam CT imaging for preoperative planning of implant placement. Clin Oral Investig 2006; 10(1): 1-7.
12. Tolstunov L, Thai D, Arellano L. Implant-guided volumetric analysis of edentulous maxillary bone with cone-beam computerized tomography scan. Maxillary sinus pneumatization classification. J Oral Implantol 2012; 38(4): 377-90.
13. Barbu HM, Comaneanu RM, Andreescu CF, Mijiritsky E, Nita T, Lorean A. Dental Implant Placement in Patients With Osteoporosis. J Craniofac Surg 2015; 26(6): 558-59.
14. Quirynen M, Mraiwa N, van Steenberghe D, Jacobs R. Morphology and dimensions of the mandibular jaw bone in the interforaminal region in patients requiring implants in the distal areas. Clin Oral Implants Res 2003; 14(3): 280-85.
15. Sumer AP, Caliskan A, Uzun C, Karoz TB, Sumer M, Cankaya S. The evaluation of palatal bone thickness for implant insertion with cone beam computed tomography. Int J Oral Maxillofac Surg 2016; 45(2): 216-20.
16. Watanabe H, Abdul MM, Kurabayashi T, Aoki H. Mandible size and morphology determined with CT on a premise of dental implant operation. Surg Radiol Anat 2010; 32(4): 343-49.
17. Braut V, Bornstein MM, 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. Int J Periodontics Restorative Dent 2012; 32(2): 175-84.
18. Nunes LS, Bornstein MM, Sendi P, Buser D. Anatomical characteristics and dimensions of edentulous sites in the posterior maxillae of patients referred for implant therapy. Int J Periodontics Restorative Dent 2013; 33(3): 337-45.
19. Braut V, Bornstein MM, Kuchler U, Buser D. Bone dimensions in the posterior mandible: a retrospective radiographic study using cone beam computed tomography. Part 2--analysis of edentulous sites. Int J Periodontics Restorative Dent 2014; 34(6): 639-47.

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