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PubMedDate not supplied

[Odontogenic cysts of the jaws. A clinicostatistical study].

In this paper a retrospective clinicostatistical study of 508 cases of odontogenic cysts of the jaws treated at the Department of Oral and Maxillofacial Surgery of the University of Athens during the last ten years 1977-1987 is undertaken, in order to evaluate their frequency and other aspects of clinical and therapeutic interest. These 508 odontogenic cysts represent 78.7% of the total number of cysts of the jaws treated in the same period in our department which means that the frequency of odontogenic cysts is still high. In regards to the incidence of each variety of odontogenic cysts, radicular cysts were found to have the highest frequency (59.6%), followed by the residual cysts (28.4%) and dentigerous cysts (12%). A higher incidence of odontogenic cysts in males (65.3%) than in females was also found, a fact which accords with that of other authors. The age distribution for patients with radicular cysts was the 3rd decade, for patients with residuals cysts the 6th decade and for patients with dentigerous cysts the 2nd decade. The majority of radicular and residual cysts was located in the maxilla whereas dentigerous cysts were more frequently located in the third molar mandibular area. Intraoral painless swelling was the most important clinical finding (74.6%). Radiologically the most frequent finding was that of a radiolucent area surrounded in 96.2% of our cases by a continuous radiopaque line. All these lesions were treated either by enucleation and apicoectomy of the teeth or by enucleation and extraction of the teeth followed by primary closure of the surgical cavity. In two cases of dentigerous cysts a two stage operation was performed. The results were highly satisfactory.

Adolescent↗
PubMed1989

[Heterotopic autogenous transplantation of retained teeth. Results of a 25 years study].

From 1959-86 58 teeth were transplanted. Most of them were retained teeth of teenagers. As result of the control in 1986 the relation of maintenance to loss of these teeth was 3:2. The oldest transplant exists since over 25 years in full function. The vital transplantation of teeth became more sure with using the apicoectomy. Teeth, the pulp of them didn't reorganize or let recognize resorptive changes on the root, were handled endodontically. Thereby regeneration of resorptive bone could be stated.

Adolescent↗
PubMed1981

Total mandibular alveolar osteotomy.

Total or posterior mandibular alveolar osteotomy was performed on 12 patients for vertical open bite (2), mandibular alveolar hypoplasia (short-face syndrome) (7), and posterior arch discrepancies (3). Follow-up periods were from nine to 48 months. Most cases showed excellent stability. Permanent damage to the inferior alveolar nerve was found in five of the 21 operated sides (25%). Damage to the tooth pulps was considerable. Two molars had to be removed and apicoectomy or endodontic treatment was carried out on ten others. Although the method is technically difficult, it can be recommended in selected cases because of its excellent stability and predictable end results.

Alveolectomy↗
PubMed1996

[Oral surgical procedures during anticoagulant therapy].

Minor oral surgery, in patients being treated with anticoagulant therapy, constitutes a problem for the oral and maxillofacial surgeon. 77 patients getting coumarin underwent 168 oral surgical procedures (tooth extraction, apicoectomy, crown-lengthening, excision of lesions) without lowering the dose of anticoagulant. Local hemostasis was achieved in all cases by silk suture. For tooth extraction gelfoam was used as well. In 12 patients who presented with postoperative bleeding, it was controlled in all by gauze pressure with tranexamic acid and/or biologic glue and/or surgical splinting. Postoperative bleeding was not correlated with the international normalized ratio (INR), but with degree of local inflammation. The study shows that interruption of anticoagulant therapy in such cases is not justified, and the use of tranexamic acid or biological glue can control bleeding.

Adult↗
PubMed1996

Intentional replantation of a mandibular molar with calcified canal: a case report.

Intentional replantation is an accepted endodontic technique for treating teeth in which both conventional and/or surgical endodontic treatments are not recommended. A rare case using intentional replantation technique on one mandibular molar has been successfully treated. This procedure was used owing to inaccessible calcified canal and pain intolerance of the patient. A thirty month post-operative evaluation revealed an asymptomatic, functional tooth with no radiographic signs of pathosis. The favorable results obtained in this case might be attributed to certain factors, such as occlusal adjustment prior to replantation, maintaining asepsis during replantation, no-damaging pressure during extraction, use of noneugenol periodontal packing, preservation of the vitality of the periodontal ligament, a minimal extraoral period, non-rigid splinting, apicoectomy and retrograde amalgam filling were done for hermetic apical seal. Intentional replantation may be limited to those cases when conventional endodontic therapy is not possible, but may be a treatment alternative to maintain the dentition and save an otherwise hopeless tooth.

Adult↗
PubMed1997

Clinical use of a bioactive glass particulate in the treatment of human osseous defects.

The dental practitioner has a wide choice of materials available for use in bone grafting procedures. A bioactive glass particulate possesses many favorable qualities not often found in other materials, including the ability to remain where placed even with adjacent suctioning; hemostasis; and incorporation into the host bone without the fibrous encapsulation encountered with most other synthetic materials. It is also quick and easy to prepare. This article reviews clinical experiences with PerioGlas in the setting of private practice periodontics, in which this material was used as the grafting material for periodontal defects, apicoectomies, cysts, and ridge augmentation and maintenance procedures, as well as for implant repairs. Several cases detail the advantages of this grafting material.

Adult↗
PubMed1992

Metastatic squamous carcinoma manifesting as a periapical lesion.

Periapical pathoses which often appear as vague radiolucent areas on routine roentgenographs, are treated by endodontic therapy alone or followed by apicoectomy. Clinicians as well as histopathologists should be aware that a metastatic carcinoma to the jaws can mimic apical lesions. A case of metastatic carcinoma from the larynx, which manifested as a periapical lesion with the clinical signs and symptoms of pulpal pathology, is described.

Adult↗
PubMed1992

Tissue response following CO2 laser application in apical surgery: light microscopic assessment in dogs.

The potential advantages of CO2 laser in apical surgery have not been established histologically. Therefore, the long-term effects of CO2 laser on the apical and periapical tissues were examined histologically in dogs 6 months after apical surgery. Lased specimens and unlased controls showed periapical inflammatory and osteogenic reactions. Lased root surfaces revealed craters with a superficial charred layer closely associated with new cementum-like matrix. The subjacent dentin appeared tubule-free and eosinophilic. Lased bone trabeculae showed a charred layer with a deeper osteocyte-free zone. The charred layer was covered by new bone. Detached charred segments in the marrow space and periapical inflammatory infiltrate were intimately associated with multinucleated giant cells, some containing minute char particles. Such cells were absent from the root and trabecular char linings. In addition, the charred surfaces were free of hard tissue resorption. These results suggest that CO2 laser does not hinder healing when applied in apical surgery.

Alveolar Process↗
PubMed2005

In vitro study of the variable square pulse Er:YAG laser cutting efficacy for apicectomy.

BACKGROUND AND OBJECTIVES: Variable square pulse (VSP) Er:YAG laser should be quicker than older Er:YAG lasers. The objectives were: (1) comparison of VSP laser and mechanical handpiece efficacy for apicectomy and (2) determination of optimal pulse width/energy/frequency combination. STUDY DESIGN/MATERIALS AND METHODS: Sixty extracted, single-rooted mature human teeth with round apical parts were instrumented, root filled, cleaned, and divided into four groups. Apical 2 mm of each root were apicectomized with mechanical handpiece and Er:YAG laser with three different settings (LaserA = 200 mJ/300 microseconds/ 8 Hz; LaserB = 200 mJ/100 microseconds/8 Hz; LaserC = 380 mJ/100 microseconds/20 Hz). Timing results were statistically compared. RESULTS: LaserC was the most efficient setting. Differences between groups were significant except between LaserC-Mechanical and LaserA-LaserC (P < 0.05). CONCLUSIONS: VSP Er:YAG laser used for apicectomy is slower by a factor of 7-31 than mechanical handpiece, but treatment outcome is acceptable. Optimal settings for apicectomy with VSP laser are 380 mJ/100 microseconds/20 Hz.

Adult↗
PubMed1998

Treatment of injuries to the inferior alveolar nerve after endodontic procedures.

Overextension of filling material into the mandibular canal after root treatment in the lower jaw is a rare but serious complication. Mechanical compression, chemical neurotoxicity and local infection may cause irreversible nerve damage. A report on 11 patients with neurological complaints of the inferior alveolar nerve after endodontic treatment is summarised. The neurological findings are dominated by hypaesthesia and dysaesthesia. Half of the patients reported pain. Hyperaesthesia is found much more rarely. Nearly all the patients had a combination of one or more symptoms. Initial X-rays showed root filling material in the area of the mandibular canal. Nine cases were treated with apicectomy and decompression of the nerve; in two cases, extraction of the tooth was necessary. Only one patient reported persistent pain after surgery. If neurological complaints appear after root filling in the lower jaw, a nerve injury due to root filling material should be ruled out. In cases of overfilling, immediate apicectomy and decompression of the nerve with conservation of the tooth is often the treatment of choice; the tooth may be preserved and the best chance of avoiding permanent nerve damage is provided.

Adult↗