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Results for “Retrograde Obturation”

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PubMed1995

[Biocem--a new material for retrograde root filling. The 5-year clinical results].

This paper describes the application of a new material, Biocem, for retrograde root canal filling. A total of 234 roots in 222 teeth were treated during the period 1987-1992. Biocem consists of two components and once mixed, the autopolymerisation results in a three-dimensional structure. The biomechanical and histologic properties and a clinical longterm follow-up confirm the optimal qualities of this material. It fulfills the requirements in regard to biocompatibility, watertight sealing and application. The material proved superior in comparison to conventional materials and ceramics. The evaluation of the results are most encouraging.

Adolescent↗
PubMedDate not supplied

Simple apicoectomy.

Explore the source record for details and available documents.

Apicoectomy↗
PubMed1994

Microscopic surgical endodontics.

Surgical procedures are an important part of endodontic therapy. The use of new technology can create more favorable results in the treatment of persistent periapical lesions, perforations, root fractures and blocked canals.

Humans↗
PubMed1993

Parameters of achieving quality anesthesia and hemostasis in surgical endodontics.

Successful management of root structures and soft tissue pathology during endodontic surgical procedures is predicated on achieving both profound anesthesia and effective tissue hemostasis. The degree of anesthesia and hemostasis required depends on the type of endodontic surgical procedure; the more complex and definitive procedures require the greatest extent of vascular control. Predictable methods for achieving successful tissue management are based on the proper use of a vasopressor drug, proper technique and rate of injection, and the use of multiple injection sites. These approaches are designed not only to enhance patient comfort but also to improve visual and manipulative access to the surgical site.

Anesthesia, Dental↗
PubMed1994

A combined endodontic retrofill and periodontal guided tissue regeneration technique for the repair of molar endodontic furcation perforations: report of a case.

This is a report of a case in which the techniques of endodontic retrofill and guided tissue regeneration were used together to treat a perforation of the mesiofacial root of a maxillary left first molar (a strip perforation). After full-thickness flap reflection, the root received a retrograde filling and a large fenestration defect was surgically created to allow access to the furcal (distal) surface of the mesiofacial root. The roots were treated with tetracycline, the defect was filled with freeze-dried, demineralized, irradiated human cadaver bone, and the access fenestration was covered with a piece of barrier membrane. Healing was uneventful and the defect showed 100% bone fill at the time of reentry to retrieve the membrane 7 months after the initial surgery. Fifteen months after surgery the area appears clinically and radiographically healthy and the tooth has been employed as an abutment for a fixed partial denture.

Adult↗
PubMed1994

Apicoectomy and retroseal procedures for anterior teeth.

Thirty-five years ago, the terms apicoectomy, semilunar flap, and failure characterized the scope of endodontic surgery. During the intervening years, basic research and clinical experience have catapaulted this area of dentistry to a level of refinement at which consistent long-term success is virtually assured. In summary, it is important to recall the principles of endodontic surgery that dictate treatment. The most important include the following: (1) The semilunar flap must be disregarded; (2) an "apicoectomy" is virtually never definitive treatment and referring to endodontic surgery as an "apicoectomy" should be discouraged; (3) careful considerations must be paid to all factors governing flap design. Finally, it must be realized that although periapical surgery has become a far more predictable treatment, it still is not a substitute for conventional endodontics, except in very rare situations.

Apicoectomy↗
PubMed1993

Dentin bonding agents and composite retrograde root filling.

The purpose of this in vitro study was to evaluate the applicability of five different commercial dentin bonding agents to the composite retrograde root filling technique. The evaluation was performed by bond strength measurements and by the tendency of retrograde composite fillings to develop gaps during exposure to thermal stress. Bond strength was measured in shear and the interface between retrograde filling and dentin was examined microscopically. In adaptation tests the apical cavity design was performed as a slightly concave dissection of the root area. Gaps were found between retrograde filling and resected root as a consequence of thermocycling when using Scotchbond 2, Prisma Universal Bond 3 and XR-Bonding System, while Tenure Solution and Gluma maintained gap-free interfaces in all test specimens. A directly proportional relationship was found between the percentage of thermocycled specimens exhibiting no gaps and the mean bond strength. Based upon these results, it is advisable to apply the dentin bonding systems Tenure Solution or Gluma for retrograde composite root filling.

Analysis of Variance↗
PubMed1995

Correction of a large periradicular lesion and mucosal defect using combined endodontic and periodontal therapy: a case report.

The successful treatment of a large endodontically induced periradicular defect and soft tissue fenestration by combined endodontic and periodontal therapy is described. Endodontics was performed on the mandibular left central incisor, the apex was resected, and a retrograde amalgam was placed. The defect was thoroughly debrided and the exposed root surface was planed with curettes. Demineralized freeze-dried bone allograft and a nonresorbable membrane were placed over the defect and the exposed root surface. The membrane was removed in 6 months and there appeared to be bone regeneration with complete closure of the soft tissue fenestration. Endodontic therapy in combination with guided tissue regeneration and bone grafting may provide another modality of treatment for endodontically related hard and soft tissue defects.

Alveolar Bone Loss↗
PubMed1995

The use of tricure glass ionomer cement as an apical sealant after apicoectomy.

The adaptation and sealing ability of a tricure glass ionomer material (Vitremer), used in a retrograde cavity was assessed and compared with amalgam. Fifty single-rooted, extracted teeth were prepared and filled endodontically. All teeth underwent root resection and retrograde cavities were prepared. The teeth were divided into two groups. One group of 10 teeth received a layer of varnish and an amalgam filling in a retrograde cavity, while the other group of 40 teeth received a layer of primer and a glass ionomer filling. All the teeth were placed in an aqueous solution of Procion Brilliant Blue for 7 days whereafter ground sections were prepared. Micro leakage was determined according to the extend of dye penetration using an image analysis system. The results showed that significantly less dye penetration was observed in teeth filled with the glass ionomer cement than in those with the amalgam.

Apicoectomy↗
PubMed1995

Dens invaginatus of a mandibular central incisor: surgical endodontic treatment.

Dens invaginatus is a developmental malformation that mostly affects maxillary lateral teeth and mandibular teeth are rarely affected. In this paper a mandibular central incisor with a dens invaginatus is identified as requiring both endodontic and surgical treatment is presented. At one year recall appointment satisfactory clinical and radiographic healing was evident. This case demonstrates that also periapical surgery should be performed in some cases with dens invaginatus for resolution of periapical tissues.

Child↗
PubMed1996

An in vitro comparison of micro leakage in three glass ionomer cements used as retrograde filling materials.

The aim of this study was to evaluate the sealing ability of conventional self-cured glass ionomer cement, silver glass ionomer cement and light-cured glass ionomer cement as retrofilling materials. Micro-leakage was assessed by introducing the samples into a 1 per cent solution of methylene blue for eight days at a constant temperature of 37 degrees C. Dye penetration was greater when silver glass ionomer cement was used in comparison to the other two materials tested; the difference was statistically significant. Conversely, the sealing ability of light-cured glass ionomer cement was significantly higher than that of conventional glass ionomer cement. The condition of the dentine-filling material interface and the marginal adaptation of the glass ionomer cements under study were assessed using scanning electron microscopy.

Cermet Cements↗