Influence of dental implantation on bone mineral density distribution: a pilot study
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PURPOSE. Masticatory loading triggers active bone remodeling, altering alveolar bone mineral density (BMD). While dental implants are placed to bear masticatory loading, their influence on changing bone properties has not been fully investigated. Objective of this pilot study was to examine whether the dental implantation has an effect on BMD distribution of bone by comparing dentate, edentulous, and edentulous patients with implants. MATERIALS AND METHODS. Cone beam computed tomography (CBCT) images of 19 partially edentulous patients (Dent), 19 edentulous patients (Edent), and 16 edentulous patients who received implants in the mandible (Edent+Im), were obtained. CBCT images were also obtained from 5 patients within Edent+Im group, before implant placement and after implant loading. Basal cortical bone region of the mandible was digitally isolated. A histogram of gray levels proportional to BMD was obtained to assess mean, histogram standard deviation (HSD), fifth percentile of low and high values (Low5 and High5) of the BMD distribution. Multivariate analysis of variance and paired t-test were used to compare the BMD parameters among the 3 dentalstatus groups and between pre- and post-implantation, respectively. RESULTS. Edentulous patients with implants had significantly greater HSD and High5 values compared to edentulous patients (P < .013). All other comparisons were not significant (P > .097). Mean, HSD, and High5 values significantly increased after receiving implants (P < .022). CONCLUSION. The current findings suggested that receiving dental implants promoted oral bone mineralization for edentulous patients. The longitudinal investigation could provide valuable information on understanding the effects of implantation on the behavior of oral bone quality.
Abstract
PURPOSE. Masticatory loading triggers active bone remodeling, altering alveolar bone mineral density (BMD). While dental implants are placed to bear masticatory loading, their influence on changing bone properties has not been fully investigated. Objective of this pilot study was to examine whether the dental implantation has an effect on BMD distribution of bone by comparing dentate, edentulous, and edentulous patients with implants. MATERIALS AND METHODS. Cone beam computed tomography (CBCT) images of 19 partially edentulous patients (Dent), 19 edentulous patients (Edent), and 16 edentulous patients who received implants in the mandible (Edent+Im), were obtained. CBCT images were also obtained from 5 patients within Edent+Im group, before implant placement and after implant loading. Basal cortical bone region of the mandible was digitally isolated. A histogram of gray levels proportional to BMD was obtained to assess mean, histogram standard deviation (HSD), fifth percentile of low and high values (Low5 and High5) of the BMD distribution. Multivariate analysis of variance and paired t-test were used to compare the BMD parameters among the 3 dentalstatus groups and between pre- and post-implantation, respectively. RESULTS. Edentulous patients with implants had significantly greater HSD and High5 values compared to edentulous patients (P < .013). All other comparisons were not significant (P > .097). Mean, HSD, and High5 values significantly increased after receiving implants (P < .022). CONCLUSION. The current findings suggested that receiving dental implants promoted oral bone mineralization for edentulous patients. The longitudinal investigation could provide valuable information on understanding the effects of implantation on the behavior of oral bone quality.
참고문헌 (16)
- Liu J, "Efficacy of cone-beam computed tomography in evaluating bone quality for optimum implant treatment planning", Implant Dent, 26, pp.405~411 (2017)
- Meena A, "Effect of implant-supported prosthesis on the bite force and masticatory efficiency in subjects with shortened dental arches", J Oral Rehabil, 41, pp.87~92 (2014)
- Douglass CW, "Will there be a need for complete dentures in the United States in 2020?", J Prosthet Dent, 87, pp.5~8 (2002)
- Jahangiri L, "Current perspectives in residual ridge remodeling and its clinical implications : a review", J Prosthet Dent, 80, pp.224~237 (1998)
- Taylor TT, "Comparison of micro-CT and cone beam CT-based assessments for relative difference of grey level distribution in a human mandible", Dentomaxillofac Radiol, 42, pp.25117764~ (2013)
- England GM, "Conditions and calibration to obtain comparable grey values between different clinical cone beam computed tomography scanners", Dentomaxillofac Radiol, 46, pp.20160322~ (2017)
- 김도균, "Can Dental Cone Beam Computed Tomography Assess Bone Mineral Density?", 대한골대사학회지, 21(2), pp.115~124 (2014), 대한골대사학회
- Ejiri S, "Histological and histomorphometrical changes in rat alveolar bone following antagonistic tooth extraction and", or ovariectomy, 2006, pp.51, 941~950
- Gallina S, "Estrogen withdrawal transiently increased bone turnover without affecting the bone balance along the tooth socket in rats", J Periodontol, 80, pp.2035~2044 (2009)
- Naveh GR, "Tooth-PDL-bone complex : response to compressive loads encountered during mastication-a review", Arch Oral Biol, 57, pp.1575~1584 (2012)
- Sebaoun JD, "Modeling of trabecular bone and lamina dura following selective alveolar decortication in rats", J Periodontol, 79, pp.1679~1688 (2008)
- Brunski JB, "In vivo bone response to biomechanical loading at the bone", dental-implant interface, 1999, pp.13, 99~119
- Al-Omiri MK, "Maximum bite force following unilateral implant-supported prosthetic treatment : within-subject comparison to opposite dentate side", J Oral Rehabil, 41, pp.624~629 (2014)
- Baca E, "In vivo evaluation of occlusalcontact area and maximum bite force in patients with various types of implant-supported prostheses", Acta Odontol Scand, 71, pp.1181~1187 (2013)
- Müller F, "Masseter muscle thickness, chewing efficiency and bite force in edentulous patients with fixed and removable implant-supported prostheses: a cross-sectional multicenter study", Clin Oral Implants Res, 23, pp.144~150 (2012)
- Kennedy KS, "A prospective clinical study to evaluate early success of short implants", Int J Oral Maxillofac Implants, 28, pp.170~177 (2013)