gluma and Periapical-Diseases

The purpose was to present the frequency of periapical healing in first and second/third mandibular molars, after root-end resections sealed with a dentine-bonded resin composite.. Root-end sealing of resected mandibular molar roots was made with dentine-bonded composite (Gluma-Retroplast) as a cover on the entire slightly hollowed root-end, in an attempt to prevent leakage.. Out of the 834 roots recalled between 6 months and 12.5 years postoperatively, 92% showed complete apical healing, 1% uncertain healing and 7% exhibited failure. The healing result of 681 first molar roots was not significantly different (P = 0.21) from that of 153 second/third molar roots, and there was no significant difference in healing between mesial and distal roots (P = 0.32 for first molars, P = 0.86 for second/third molars) or amongst six age groups (P = 0.94). In the patient group: 71-89 years, 36 roots showed an average of 97% with complete healing. Out of 25 failures who were retreated surgically, 80% showed complete healing when examined subsequently.. Root-end sealing of mandibular molars with dentine-bonded resin composite is a promising technique giving 92% complete healing in cases examined between 6 months and 12 years postoperatively.

Topics: Adolescent; Adult; Aged; Aged, 80 and over; Apicoectomy; Bisphenol A-Glycidyl Methacrylate; Chi-Square Distribution; Composite Resins; Dental Bonding; Dental Leakage; Dentin-Bonding Agents; Female; Follow-Up Studies; Glutaral; Humans; Male; Mandibular Diseases; Middle Aged; Molar; Molar, Third; Periapical Diseases; Periapical Periodontitis; Periapical Tissue; Polymethacrylic Acids; Retreatment; Treatment Outcome; Wound Healing

The purpose of this study was to investigate the long-term stability of apical retrograde root fillings using a dentin-bonded resin composite. Radiographs were used to establish the degree of healing around the apically filled roots. Patients examined were those who had previously showed complete healing 1 yr after surgery. Thirty-three of the first 34 consecutively placed resin composite apical fillings performed since the introduction of this method in 1984 were examined. Six of these fillings were examined 8 yr after surgery, and 27 of these fillings were examined 9 yr after surgery. Only one patient showed recurrence of periapical inflammation 8 yr after operation, probably caused by a root fracture. It was concluded that the bond established between dentin and the resin composite was stable during the observation period, and that the filling material had not been harmful to the surrounding tissues. If complete bone healing has been observed, it could be expected to remain stable, unless new factors, such as root fracture, occurred.

Topics: Adolescent; Adult; Aged; Bisphenol A-Glycidyl Methacrylate; Dentin-Bonding Agents; Female; Follow-Up Studies; Glutaral; Humans; Male; Middle Aged; Periapical Diseases; Polymethacrylic Acids; Retrograde Obturation; Root Canal Filling Materials; Treatment Outcome

Investigations on retrograde root filling using a composite resin, Retroplast, bonded to the root surface with the dentin-bonding agent Gluma have been described. Here, detailed information is given about the surgical procedures. The aim was to obtain a thin retrograde composite filling on the root apex, made slightly concave, sealing the main root canal, accessory canals as well as dentinal tubules. Hemostasis was obtained primarily by applying 1% adrenaline and by using a needle suction tip, and care was taken not to damage the surrounding tissues by the various chemicals. The healing results, after up to 1 year, of 388 cases of various tooth types, treated with either retrograde composite or with amalgam were compared. The healing classification included four categories: 1) complete healing; 2) fibrous healing; 3) uncertain; and 4) failures. In the composite group, the healing rates were as follows: 74% showed complete healing, 4% fibrous healing, 15% uncertain, and 7% were failures. In the amalgam group, 59% showed complete healing, 3% fibrous healing, 30% uncertain, and 8% were failures. Complete healing occurred significantly more often after filling with Retroplast than after filling with amalgam (p less than 0.00005). Significantly fewer cases with complete healing occurred in lower front teeth in proportion to other tooth types. The number of immediate postoperative complications did not differ significantly between the composite and the amalgam groups.

Topics: Bisphenol A-Glycidyl Methacrylate; Composite Resins; Dental Amalgam; Dental Bonding; Dentin; Glutaral; Hemostasis, Surgical; Humans; Periapical Diseases; Polymethacrylic Acids; Retrograde Obturation; Root Canal Filling Materials; Wound Healing