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| 2010-22 |
| 22-1 |
ISSN (Print) 1013-9052
EISSN 1658-3558
P.O. Box 52500,
Riyadh 11563,
Kingdom of Saudi Arabia
| Tel. |
966-1-467-7328 |
| Fax. |
933-1-467-7308 / 966-1-467-7534 |
| Email |
saudidj@ksu.edu.sa |
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Causes of denture fracture : A
survey
Fracture of acrylic resin removable dentures occurs
frequently during service through heavy occlusal force or accidental damage. OBJECTIVES:
The purpose of this survey was to determine the number and type of damaged
removable dentures at Dammam Dental Center, Dammam, Saudi Arabia and to
ascertain the statistical relationship between certain variables and damage to
dentures. MATERIALS and METHODS: Three operators were instructed to
complete the questionnaires for each denture received for repairs at the center
over a period of 6 months. Eleven variables were examined for each damaged
denture. RESULTS: Results obtained showed that the type of dentures most
commonly needing repair was the lower partial denture (46.4%). Results also
showed that 53.6% of the damaged dentures had been in use more than 1 year and
less than 3 years. Impact failure (80.4%) was the most common cause of damage.
The most frequent type of damage was breakdown of the acrylic base (71.4%). The
Chi-square test showed a statistical dependence (P<0.05) between
damaged dentures and some of tested variables namely, Kennedy classification of
partial denture, age of the denture, causes of fracture, type of fracture,
retention of the denture, type of antagonist and strengthener of the denture. CONCLUSIONS:
It could be concluded that damage to removable dentures is quite frequent
and provides much distress and cost for patients. These difficulties can best
be prevented by regular examinations of the mouth and dentures. A new, more
suitable method of reinforcing the base of dentures during preparation is also
needed.
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