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Titolo:
Implant-supported overdentures, a prevention of bone loss in edentulous mandibles? A 5-year follow-up study
Autore:
von Wowern, N; Gotfredsen, K;
Indirizzi:
Univ Copenhagen, Fac Hlth Sci, Sch Dent, Dept Oral & Maxillofacial Surg, DK-2200 Copenhagen N, Denmark Univ Copenhagen Copenhagen Denmark N Surg, DK-2200 Copenhagen N, Denmark Univ Copenhagen, Fac Hlth Sci, Sch Dent, Dept Prosthet Dent, DK-2200 Copenhagen, Denmark Univ Copenhagen Copenhagen Denmark DK-2200 , DK-2200 Copenhagen, Denmark
Titolo Testata:
CLINICAL ORAL IMPLANTS RESEARCH
fascicolo: 1, volume: 12, anno: 2001,
pagine: 19 - 25
SICI:
0905-7161(200102)12:1<19:IOAPOB>2.0.ZU;2-Q
Fonte:
ISI
Lingua:
ENG
Soggetto:
OSSEOINTEGRATED ORAL IMPLANTS; DUAL-PHOTON ABSORPTIOMETRY; MINERAL CONTENT; DENTAL IMPLANTS; MASS MEASUREMENTS; OSTEOPOROSIS; POPULATION; REDUCTION; FAILURES; ADJACENT;
Keywords:
age; bone mineral content; bone loss; dental/oral implants; long-term follow-up; mandible; osteoporosis; overdenture;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Clinical Medicine
Citazioni:
38
Recensione:
Indirizzi per estratti:
Indirizzo: von Wowern, N Univ Copenhagen, Fac Hlth Sci, Sch Dent, Dept Oral & Maxillofacial Surg, 20 Norre, DK-2200 Copenhagen N, Denmark Univ Copenhagen 20 Norre Copenhagen Denmark N en N, Denmark
Citazione:
N. von Wowern e K. Gotfredsen, "Implant-supported overdentures, a prevention of bone loss in edentulous mandibles? A 5-year follow-up study", CLIN OR IMP, 12(1), 2001, pp. 19-25

Abstract

The purposes of this study were to analyse 1) the changes in the bone mineral content (BMC) in mandibles with implant-supported overdentures when compared with the physiologic age-related mandibular BMC loss, 2) whether the BMC changes were different in groups without or with a bar connecting the implants and 3) whether the presence of mandibular osteoporosis affects the loss of bone height around the implants. The material consisted of 22 long-term edentulous healthy persons, 18 women and 4 men from 54 to 78 years of age with 1 Astra Tech Dental Implant in both canine regions, connected by abar in half of the patients. BMC measurements were performed in vivo by dual-photon scanner at baseline, just after attachment insertion, at 2-year and 5-year visits. Mandibular osteoporosis was estimated by comparing baseline BMC values with normal mandibular BMC values for young adults of same gender. Loss of bone height around implants was measured on periodically identical intraoral radiographs. The fixed parts of the implant-system were stable during the trial in all patients. In conclusion: I)the increased function after this treatment seems to cause a load-related bone formation which minimizes the physiologic age-related mandibular BMC loss, 2) this effect seems to be independent of attachment system and 3) mandibular osteoporosis prior to implant treatment may be a risk factor for bone loss around implants. However, this treatment can be recommended also in osteoporotic persons.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 22/09/20 alle ore 21:33:40