Abstract
The aims of this study were to evaluate the treatment need of fixed
bridges according to the distribution of pontics in dentition in different
age groups, and to investigate the primary and late complications and
survival of the conventional fixed metal ceramic prostheses, as well as
patients' satisfaction with the prosthetic treatment.
The whole material consisted of the patients treated with fixed metal
ceramic prostheses by undergraduate students at the Institute of Dentistry
during the years 1984 - 1996. There were altogether 772 patients, 460
women (60 %) and 312 men (40 %). Their mean age was 47 years (23 - 81
years). Altogether 944 single metal ceramic crowns and 543 fixed bridges
(1374 abutments and 807 pontics) were prepared.
It can be concluded that the fixed bridges are most often prepared to
replace upper first premolars and lower first molars also in the future.
The most usual primary complications related to fixed bridges occurred
during preprosthetic endodontic treatment of abutment teeth and during the
preparation of the root canals. Previous restoration of the prepared tooth
does not have any marked effect on the prognosis of single crowns with
dowels, although anatomically complicated upper lateral incisors and upper
first premolars need special attention in the treatment planning. Patients
were satisfied with aesthetics and function of the fixed metal ceramic
prostheses. Late complications found in clinical examinations were few,
and the survival rate for the fixed metal ceramic bridge prostheses was
calculated to be 84 % after 10 years, long fixed bridges having a lower
survival than the shorter ones.
The treatment need for conventional fixed bridges seems to be highest
among patients over 50 years of age in the future. Age does not influence
the longevity of the fixed prostheses, but basic circumstances of the
mouth, especially low secretion of saliva affected by diseases and/or
medications and high scores of lactobacilli and streptococcus mutans of
the saliva seem to decrease the survival.
| Identifer | oai:union.ndltd.org:oulo.fi/oai:oulu.fi:isbn951-42-6540-8 |
| Date | 24 October 2001 |
| Creators | Näpänkangas, R. (Ritva) |
| Publisher | University of Oulu |
| Source Sets | University of Oulu |
| Language | English |
| Detected Language | English |
| Type | info:eu-repo/semantics/doctoralThesis, info:eu-repo/semantics/publishedVersion |
| Format | application/pdf |
| Rights | info:eu-repo/semantics/openAccess, © University of Oulu, 2001 |
| Relation | info:eu-repo/semantics/altIdentifier/pissn/0355-3221, info:eu-repo/semantics/altIdentifier/eissn/1796-2234 |
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