Comparative study of axial and femoral bone mineral density and parameters of mandibular bone quality in patients receiving dental implants
- First Online:
- 153 Downloads
In view of the increase in the life expectancy of humans and in edentulism of the population above 50 years of age, in which the prevalence of osteoporosis is also higher, it is fundamental to better understand the effects of systemic bone mass loss on the healing process of dental implants and to determine the quality of the bone that surrounds them. The objective of the present study was to compare systemic osteoporosis (axial and femoral) and parameters of mandibular bone quality, and to evaluate osseointegration in postmenopausal women receiving dental implants.
The sample consisted of 39 women aged 48–70 years, 19 with a densitometric diagnosis of osteoporosis in the lumbar spine and femoral neck and 20 controls with a normal densitometric diagnosis. Bone mineral density was measured in the patients and controls by dual-energy X-ray absorptiometry. Eighty-two osseointegrated dental implants were placed in the mandible, 39 of them in the osteoporosis group and 43 in the control group. Mandibular bone quality was evaluated by classifying mandibular inferior cortical and trabecular bone on panoramic radiographs and by histomorphometric analysis of a mandibular bone biopsy. Osseointegration was analyzed after 9 months.
No significant difference was observed between patients with osteoporosis and controls when comparing individuals with a normal cortex and those with a severely or moderately eroded cortex determined on panoramic radiographs. Histomorphometric analysis also revealed no difference in the parameters of bone formation or resorption between the two groups. Implant failure was observed in only one case.
We conclude that there is no association between systemic osteoporosis (axial and femur) and parameters of poor mandibular bone quality. The loss of one implant (1.2%) is compatible with the literature and cannot be attributed to systemic osteoporosis.
KeywordsBone histomorphometry Bone mineral density Dental implant Osseointegration Osteoporosis
- 5.Von Worwen N, Klausen B, Kollerup G (1994) Osteoporosis: a risk factor in periodontal disease. J Periodontol 65:1134–1138Google Scholar
- 9.Kanis JA, Melton LJ, Christiansen C, Johnston CC, Khaltaev N (1994) The diagnosis of osteoporosis. J Bone Miner Res 8:1137–1141Google Scholar
- 11.Klemetti E, Kolmakow S, Kroger H (1994) Pantomograph in assessment of the osteoporosis risk group. Scand J Dent 102:68–72Google Scholar
- 15.Spiekermann H (2000) Implantologia. Translation by Sergio Lian Branco Martins. Artmed, Porto AlegreGoogle Scholar
- 16.Jovanovic SA (1990) Paradontale aspecten von tandheelkundige implantaten. Tandarstprakti J K 3:16Google Scholar
- 23.Francischone P, Tavano O (2000) Avaliação da perda óssea maxilar pela análise da radiografia panorâmica comparando com a densitometria óssea mandibular e femoral. BCI 7:24–28Google Scholar
- 24.Bulgarelli AF (2002) Osteoporose: um foco de estudo na odontologia. RPG Rev Pos-Grad 9:379–382Google Scholar
- 29.Frost HM (1964) Bone biodynamics. Little Brown, Boston, pp 315–333Google Scholar
- 31.Mohammad AR, Jones JD, Brunsvold MA (1994) Osteoporosis and periodontal disease: a review. CDA J CA Dent Assoc 22:69–75Google Scholar
- 34.Albreketsson T, Zarb GA (1989) The Branemark osseointegrated implant. Quintessence, Chicago, 262ppGoogle Scholar
- 36.Branemark P-I, Hansson BO, Adell R, Breine U, Lindström MJ, Hallén O, Ohman A (1977) Osseointegrated implants in the treatment of the edentulous jaw. Experience from a 10-year period. Scand J Plast Reconstr Surg 16:1–132Google Scholar
- 37.Strid KG (1985) Radiographic procedures. In: Branemark PI, Zarb GA, Albrektsson T (eds) Tissue- integrated prosthesis. Osseointegration in clinical dentistry. Quintessence, Chicago, pp 317–337Google Scholar