Comparison in Bone Density Changes for Two Different Designs in Treatment of Mandibular Bilateral Free End Saddle with Osseointegrated Implants
Keywords:Lower Kennedy class I, Removal partial denture, Implant, Extracoronal, Bar attachment
AIM: The aim of this study is to evaluate two different designs in mandibular bilateral free end saddle cases with the use of osseointegrated implants. The designs evaluated were OT-strategy extracoronal attachment and bar attachment. Radiographic evaluation was carried out for implants and natural abutment in terms of bone density.
MATERIALS AND METHODS: This study was conducted on 10 patients with bilateral distal extension area with missing molars bilaterally; the patients were divided into two groups after implant insertion on the second molar area. Group I: Patients received extracoronal attachment distal to the last natural abutment teeth with the construction of metallic removable partial denture (RPD). Group II: Patients received bar attachment with the construction of metallic RPD. Both groups have the maxillary arch edentulous with the construction of complete maxillary dentures within our study. Radiographic evaluation for bone density was done for both groups at the time of prosthesis insertion, 3, 6, and 9 months later. A comparison between the two groups regarding each follow-up period was performed by an independent t-test.
RESULTS: Although there were some differences between both designs in the 1st-time intervals, generally, there were no significant differences between the two designs all over the 3-time intervals.
CONCLUSION: From the results of this study, it was concluded that: Although there were no significant differences between both designs, bar-attachment showed better results which should be confirmed with more future researches.
Plum Analytics Artifact Widget Block
Gonçalves TM, Campos CH, Garcia RC. Implant retention and support for distal extension partial removable dental prostheses: Satisfaction outcomes. J Prosthet Dent. 2014;112(2):334-9. https://doi.org/10.1016/j.prosdent.2013.11.004 PMid:24513426
Araújo MG, Lindhe J. Dimensional ridge alterations following tooth extraction. An experimental study in the dog. J Clin Periodontol. 2005;32(2):212-8. https://doi.org/10.1111/j.1600-051x.2005.00642.x PMid:15691354
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-201. https://doi.org/10.1177/0022034513506713 PMid:24158340
Gates WD, Cooper LF, Sanders AE, Reside GJ, De Kok IJ. The effect of implant-supported removable partial dentures on oral health quality of life. Clin Oral Implants Res. 2012;25:207-13. https://doi.org/10.1111/clr.12085 PMid:23278481
De Freitas RF, De Carvalho Dias K, Da Fonte Porto Carreiro A, Barbosa GA, Ferreira MA. Mandibular implant-supported removable partial denture with distal extension: A systematic review. J Oral Rehabil. 2012;39(10):791-8. https://doi.org/10.1111/j.1365-2842.2012.02326.x PMid:22882547
Sato M, Suzuki Y, Kurihara D, Shimpo H, Ohkubo C. Effect of implant support on mandibular distal extension removable partial dentures: Relationship between denture supporting area and stress distribution. J Prosthodont Res. 2013;57(2):109-12. https://doi.org/10.1016/j.jpor.2013.06.002 PMid:23582267
Campos CH, Gonçalves TM, Garcia RC. Implant-supported removable partial denture improves the quality of life of patients with extreme tooth loss. Braz Dent J. 2015;26(5):463-7. https://doi.org/10.1590/0103-6440201300097 PMid:26647929
Neppelenbroek KH. Biomechanics of removable partial dentures. Pro-dental prosthesis. Upgrade Prog. 2010;2:39-139.
Prasad S, Monaco EA. A modified treatment approach for fabricating a mandibular distal-extension partial denture: A clinical report. Quintessence Int. 2010;41(3):185-9. PMid:20213017
Tumrasvin W, Fueki K, Ohyama T. Factors associated with masticatory performance in unilateral distal extension removable partial denture patients. J Prosthodont. 2006;15(1):25-31. https://doi.org/10.1111/j.1532-849x.2006.00065.x PMid:16433648
Nakamura Y, Kanbara R, Ochiai KT, Tanaka Y. A finite element evaluation of mechanical function for 3 distal extension partial dental prosthesis designs with a 3-dimensional nonlinear method for modeling soft tissue. J Prosthet Dent. 2014;112(4):972-80. https://doi.org/10.1016/j.prosdent.2014.03.011 PMid:24819523
Rodrigues RC, Faria AC, Macedo AP, De Mattos MD, Ribeiro RF. Retention and stress distribution in distal extension removable partial dentures with and without implant association. J Prosthodont Res. 2013;57(1):24-9. https://doi.org/10.1016/j.jpor.2012.07.001 PMid:23200090
Lammie GA, Laird WR. Osborne and Lammie’s Partial Dentures. 5th ed. Oxford, London: Blackwell Scientific Publication; 1986. p. 289-307.
Maeda Y, Sogo M, Tsutsumi S. Efficacy of a posterior implant support for extra shortened dental arches: A biomechanical model analysis. J Oral Rehabil. 2005;32(9):656-60. https://doi.org/10.1111/j.1365-2842.2005.01478.x PMid:16102078
Omura AJ, Latthe V, Marin MM, Cagna DR. Implant-assisted removable partial dentures: Practical considerations. Gen Dent. 2016;64(6):38-45. PMid:27814254
Jacobs R, Quirynen M, Bornstein MM. Neurovascular disturbances after implant surgery. Periodontol 2000. 2014;66(1):188-202. https://doi.org/10.1111/prd.12050 PMid:25123768
Carr A, Brown D. McCracken’s Removable Partial Prosthodontics. 12th ed. St Louis, Missouri: Elsevier; 2011. p. 231-41.
Thayer HH, Caputo AA. Photoelastic stess analysis of overdenture attachments. J Prosthet Dent. 1980;43(6):611-7. PMid:6989977
Pigozzo MN, Mesquita MF, Henruiqes GE. The service life of implant-retained overdenture attachment systems. J Prosthet Dent. 2009;102(2):74-80. https://doi.org/10.1016/ s0022-3913(09)60112-8 PMid:19643220
El Charkawi H, El Wakad M. Effect of splinting on load distribution of extracoronal attachment with distal extension prosthesis in vitro. J Prosthet Dent. 1996;76(3):315-22. https://doi.org/10.1016/s0022-3913(96)90178-x PMid:8887807
Kanathila H, Doddamani M, Pangi A. An insight into various attachments used in prosthodontics: A review. Int J Appl Dent Sci. 2018;4(4):157-60.
Tarnow DP, Emtiaz S, Classi A. Immediate loading of threaded implants at stage 1 surgery in edentulous arches: Ten consecutive case reports with 1- to 5-year data. Int J Oral Maxillofac Implants. 1997;12(3):319-24. PMid:9197096
Maló P, Rangert B, Dvärsäter L. Immediate function of Brånemark implants in the esthetic zone: A retrospective clinical study with 6 months to 4 years of follow-up. Clin Implant Dent Relat Res. 2000;2(3):138-46. https://doi.org/10.1111/j.1708-8208.2000.tb00004.x PMid:11359258
Bergkvist G, Simonsson K, Rydberg K, Johansson F, Dérand T. A finite element analysis of stress distribution in bone tissue surrounding uncoupled or splinted dental implants. Clin Implant Dent Relat Res. 2008;10(1):40-6. https://doi.org/10.1111/j.1708-8208.2007.00059.x PMid:18254739
Shakeel SK. Removable prosthesis using extra coronal precision attachment. Gulf Med J. 2013;2(S1):S126-9.
Rhein 83 USA Inc.; 2009. Available from: http://www.Rheinusa. com. [Last accessed on 2020 May 20].
Nada MA, Gharrphy S, Badawy HS. A two year longitudinal study on the effect of removable partial denture design on the health of the remaining teeth. Egypt Dent J. 1987;33(1):85-95.
Von Wowern N, Gotfredsen K. Implant-supported overdentures, a prevention of bone loss in edentulous mandibles? A 5-year follow-up study. Clin Oral Implant Res. 2001;12(1):19-25. https://doi.org/10.1034/j.1600-0501.2001.012001019.x PMid:11168267
Buser D, Schenk RK, Steinemann S, Fiorellini JP, Fox CH, Stich H. Influence of surface characteristics on bone integration of titanium implants. A histomorphometric study in miniature pigs. J Biomed Mater Res. 1991;25(7):889-902. https://doi.org/10.1002/jbm.820250708 PMid:1918105
Murphy WM. Clinical and experimental bone changes after intraosseous implantation. J Prosthet Dent. 1995;73(1):31-5. PMid:7699596
Mishra R, Shivrayan A, Jain S, Mehta S. Fabrication of bar-retained tooth-supported mandibular overdenture. Int J Oral Health Sci. 2014;4:37-41. https://doi.org/10.4103/2231-6027.151624
Hanif A, Qureshi S, Sheikh Z, Rashid H. Complications in implant dentistry. Eur J Dent. 2017;11(1):135-40. https://doi.org/10.4103/ejd.ejd_340_16 PMid:28435381
How to Cite
Copyright (c) 2020 Seham Sabra, Dr. Gehan Fekry, Dr. Emad Tolba (Author)
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
All rights reserved.