[Restore two posterior teeth with modified resin-bonded-bridge].
OBJECTIVE
To restore two posterior teeth with resin-bond-bridge with attachments.


METHODS
Twenty patients were selected with two adjacent posterior teeth missing and the opposite teeth were natural teeth. The mean age was 45.6 years old, 9 male and 11 female. The maxillary cases were 12 and mandibules case were 8. The female part of attachment was attached with the retainer on the bicuspid teeth; the male part was attached with the pontic. After try-in, the two parts were adhered to the abutments separately and joined by the attachment.


RESULTS
The mean survival time of the 20 cases was 28.8 months, and the max was 42 months. In only one case the posterior part debonded, and it resumed being used after rebonding.


CONCLUSIONS
In recent years the successful rate of resin-bond-bridge has got close to that of the traditional bridge. Most RBB were used to restore the single missing tooth. Now RBB with non-rigid connector can restore two missing teeth. When the teeth get stress, the directions of stress are different. The longer span of RBB with rigid connector, the bigger interbutment stress on the adhere layer. With the non-rigid connector the stress between the retainer and the adhesive layer can be reduced. Our clinic treatment showed that this kind of method got good results and even the service time was not very long.
Tan
Jing
J
Department of Prosthodontics, Peking University School and Hospital of Stomatology, Beijing 100081, China.
Jiang
Hui
H
Wang
Xin-zhi
XZ
Botelho
Michael G
MG
D001641:Bicuspid; D000044:Dental Abutments; D003781:Denture Retention / Q000295:instrumentation*; D016379:Denture, Partial, Fixed, Resin-Bonded; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged