Use of a hydroxylapatite-based material and calcium sulfate as artificial floors to repair furcal perforations

• Published in: Oral surgery, oral medicine, oral pathology, oral radiology and endodontics Vol. 86; no. 6; pp. 723 - 729
• Main Authors: Alhadainy, Hatem A, Himel, Van T, Lee, W.Boyed, Elbaghdady, Yehia M
• Format: Journal Article
• Language: English
• Published: St. Louis, MO Mosby, Inc 01.12.1998; Elsevier
• Subjects: Animals; Biological and medical sciences; Calcium Sulfate - pharmacology; Composite Resins; Dental Instruments - adverse effects; Dental Pulp Cavity - injuries; Dental Restoration, Permanent - methods; Dentistry; Dogs; Durapatite - pharmacology; Female; Glass Ionomer Cements - chemistry; Glass Ionomer Cements - pharmacology; Hydroxyapatites - pharmacology; Medical sciences; Osteogenesis - drug effects; Periapical Tissue - drug effects; Periodontal Ligament - drug effects; Root Canal Preparation - adverse effects; Root Canal Preparation - instrumentation; Surgery (general aspects). Transplantations, organ and tissue grafts. Graft diseases; Technology. Biomaterials. Equipments; Tooth Injuries - therapy; Tooth Root - injuries; Fissipedia; Carnivora; Stomatology; Indication; Perforation; Dental disease; Hydroxyapatite; Experimental study; Calcium sulfate; Result; Vertebrata; Endodontic procedures; Mammalia; Treatment; Surgery; Animal; Biomaterial; Technique; Dog; Dental pulp
• ISSN: 1079-2104; 1528-395X
• DOI: 10.1016/S1079-2104(98)90211-6

Objective. The purpose of this study was to evaluate a hydroxylapatite-based material and calcium sulfate when each was used under a resin-modified glass ionomer cement to repair furcation perforations. Study design. Perforations of pulp chamber floors were made in 72 teeth of 9 dogs. Perforations were divided into 3 equal-sized groups and repaired with resin-modified glass ionomer either alone or over an artificial floor. The artificial floor was either a hydroxylapatite-based material or calcium sulfate. Three dogs were killed at each of 3 intervals (1, 3, and 6 months). The tissue response to the tested materials was evaluated clinically, radiographically, and histologically. Results. The hydroxylapatite-based material showed the highest radiographic success; this was followed by calcium sulfate and glass ionomer. From histologic evaluation, the average success rate was found to be 67% for calcium sulfate, 62% for the hydroxylapatite-based material, and 59% for glass ionomer. However, there was no statistical significant difference with the resin-modified glass ionomer when it was used alone and when it was used over a barrier. There was also no significant difference between the hydroxylapatite-based material and the calcium sulfate when they were used as artificial floors. Conclusion. The use of an artificial floor may not be necessary when flowable resin-modified glass ionomer cements are used.