Long-term survival of fragment bonding in the treatment of fractured crowns: a multicenter clinical study.

• In three Scandinavian dental facilities, a series of 334 permanent incisors with fractures of the crown or crown and root was treated by reattachment of the fragment with a resin composite. Two centers (Oslo and Stockholm) employed acid etching of enamel alone for fragment bonding (n = 146), while the third center (Copenhagen) used a combination of enamel etching and dentinal bonding (n = 188). Although the final retention rate of fragment bonding was similar in the two groups, it took the dentinal bonding group almost three times as long to drop to 50% fragment retention. This difference could be attributed to greater bonding strength in the dentinal bonding group, greater risk of second injury in the younger acid-etching group, or difficulty in maintaining a dry operative field in the younger age group. The good fragment retention, acceptable esthetics, and pulpal vitality observed in the present series indicate that reattachment of the coronal fragment is a realistic alternative to placement of conventional resin-composite restorations.

Ämnesord

MEDICIN OCH HÄLSOVETENSKAP  -- Klinisk medicin -- Odontologi (hsv//swe)

MEDICAL AND HEALTH SCIENCES  -- Clinical Medicine -- Dentistry (hsv//eng)

Nyckelord

Acid Etching

Dental

Adolescent

Adult

Chi-Square Distribution

Child

Composite Resins

Dental Pulp Necrosis

etiology

Dental Restoration

Permanent

methods

Dentin-Bonding Agents

Female

Follow-Up Studies

Glutaral

Humans

Male

Polymethacrylic Acids

Time Factors

Tooth Avulsion

complications

Tooth Crown

injuries

Tooth Fractures

complications

therapy

Tooth Root

growth & development

injuries

Treatment Outcome

Publikations- och innehållstyp

ref (ämneskategori)

art (ämneskategori)