Devital Teeth Research Articles

Differentiated approach to the choice of the adhesive system in filling of vital and devital teeth

Differentiated approach to the choice of the adhesive system in filling of vital and devital teeth

Conservative Class II Foils.

Conservative Class II Foils.

Orthopedic treatment with fixed dentures taking into account the distribution and causes of defects in dental hard tissues

The aim of this work was to analyze the causes of complications of orthopedic treatment of dentition defects with metal-ceramic crowns and non-removable metal-ceramic bridges. Materials and methods. A total of 140 patients aged 34 to 49 years were examined during the work, who underwent the production of both single metal-ceramic crowns and non-removable metal-ceramic bridges. All patients were divided into 2 groups (70 patients each): the first one included patients with vital abutment teeth, the second one – with depulped. The abutment teeth had a different functional state – they were filled, had wedge-shaped defects or increased abrasion. Results. Orthopedic treatment showed that the manufacture of solid metal-ceramic crowns on dental teeth, which were filled more than 1 year ago, led to complications in 18 of 35 (51.4 %) patients in this group, which is insignificantly (P ˃ 0.05) by 17.2 % less than with similar prosthetics on depulped teeth. Regarding the manufacture of bridges, the trend of more complications in prosthetics on devital teeth persists, because in group I we had 20 (57.7 %) patients with complications, and in group II – 29 (82.9 %) cases, which is significantly different at the level of P < 0.05. In prosthetics of vital teeth, defects of hard tissues of which are replaced by filling material immediately before prosthetics, single crowns of complications occurred in 3 patients, i.e. in 8.6 %, which is insignificantly (P ˃ 0.05) less by 5.6 % than in group II where complications were found in 5 (14.2 %) people. Analysis of orthopedic treatment of patients with included defects of dentitions with metal-ceramic bridge prostheses revealed that when using filled teeth (filled for 1 year before prosthetics) in the case, when they were depulped, as abutment, complications were observed in 9 people, i.e. in 25.7 % of this group. This indicator insignificantly (P ˃ 0.05) exceeds the identical one from the first group (14.3 %) by 11.4 %, therefore, there is a tendency to reduce tooth resistance to negative external and internal factors, which has not acquired statistical significance. Conclusions. The study found that the frequency of complications that occur after prosthetics with fixed dentures depends on the condition of the tooth pulp, because the viable pulp provides metabolism, renewal of tooth cells and response to any damage. The need to replace fillings that were made more than 1 year ago to reduce the risk of secondary caries has been proven. Defects of hard tissues in the form of a wedge-shaped defect and the increased attrition do not increase frequency of complications in prosthetics by fixed dentures.

The relevance applying in the adhesive protocol in devital teeth

Aim. To determine the relevance of the application of the chlorhexidine adhesive Protocol in devital teeth.Materials and methods. A systematic review of the literature in the electronic databases Google Scholar and Pubmed was conducted. Articles related to research on the activity of matrix metalloproteinases in vital and devital teeth, as well as research on the effectiveness of the chlorhexidine Protocol, are considered and included.Results. 60 articles were reviewed during the review. After making the selection based on the exclusion criteria, the number of included studies was 36.Conclusions. According to the studied publications, it was found that MMP 2 and MMP 9 are contained not only in vital, but also in devital teeth. The use of a chlorhexidine adhesive Protocol is relevant in both clinical cases but depending on the type of MMP and the state of the pulp, the concentration of chlorhexidine is selected.

Внутрикоронковое отбеливание девитальных зубов

The literature review provides data on modern methods and tools used for intracoronal whitening, the advantages and disadvantages of whitening devital teeth, provides data on the causes of changes in the natural color of teeth, the effect of means for intracoronal whitening on the structure of tooth and periodontal tissues. The clinical stages of the whitening of an endodontic cured tooth are also described in detail.

Complications of endodontically treated abutment teeth after restoration with non-precious metal double crowns.

This study aimed to evaluate the effects of endodontic treatment on the complication rate in abutment teeth following double crown treatment. Data of 233 patients supplied with 278 prostheses on 773 teeth were retrospectively analyzed. The 60-month cumulative complication rate for vital, root filled, and post and core reconstructed abutment teeth is calculated using the Kaplan-Meier method. Cox regression is performed to evaluate factors including age, sex, jaw, and tooth number. After 60 months, the cumulative complication rate for all abutment teeth was 24.1% (CI: 19.7-28.5%). A significantly higher cumulative fracture rate (log-rank test, p < 0.001) was found for devital (51.7%; CI: 35.3-68.1%) compared to vital abutment teeth (20.6%; CI: 16.2-25%). Devital teeth restored with post and core reconstructions (46.3%; CI: 26.1-66.5%) showed a lower cumulative fracture rate than abutment teeth with only root fillings (60.9%; CI: 33.5-88.3%). Abutment teeth in severely reduced dentitions (≤ 3 teeth) were found to have significantly lower survival rates than abutment teeth in not severely reduced dentitions (≥ 4 teeth, p = 0.031, HR = 0.609). Lower abutment teeth survival rates were associated with non-vitality and a reduced number of abutment teeth. Devital teeth with post and core reconstructions showed higher survival rates than root filled devital teeth. After 5 years, devital teeth with double crowns have a fracture rate twice as high as vital teeth. This prognosis should be taken into account during treatment planning, especially in the severely reduced dentition.

Post-obturation pain following the use of carrier-based system with AH Plus or iRoot SP sealers: a randomized controlled clinical trial.

The aim of this study was to compare the postoperative pain after root canal treatment using a carrier-based obturation system and two different sealers. In this prospective randomized clinical trial, 160 patients were selected. Patients with vital and devital teeth were randomized into four groups using a randomized block design with block sizes of 10 patients each. The groups were devital/vital teeth treated with iRoot SP sealer and devital/vital teeth treated with AH Plus sealer. Patients were prescribed ibuprofen, a 200-mg analgesic, if needed, and postoperative pain was recorded by visual analogue scale at 6, 12, 24, and 72h after obturation. Pain score and frequency of tablet intake were recorded and statistically analyzed. Results showed that there was no significant difference between groups in the incidence of postoperative pain; however, iRoot SP sealer was associated with less analgesic intake compared to AH Plus sealer. The use of different sealers did not significantly affect pain levels. iRoot SP sealer was associated with less analgesic intake compared to AH Plus sealer.

Outcome of Initial Endodontic Treatment Performed, by One Specialist, in 122 Tunisian Patients: A Retrospective Study.

Objective To assess the 6- to 24-month outcome of endodontic treatments performed, by one specialist, and to identify prognostic factors that may influence initial endodontic treatment outcome (IETO). Methods One hundred and forty-six patients out of 163 were included. A number of 201 teeth were endodontically treated, and an overall number of 408 canals were obturated. Of these, 165 teeth received initial endodontic treatment (IET). The criteria of the European Society of Endodontology were used to assess the IETO. The level of significance was set at p < 0.05%. Results Apical periodontitis (AP) was present in 42.5% of all cases, with a PAI >3 in 28.5%. The success rate (SR) was 91.5%. It was significantly higher in vital teeth (97%) than in devital teeth (87.7%) (p=0.04); however, a lower SR was recorded in teeth with AP (p=0.02). The lesion healed in 60 teeth (85.7%), decreased in size in 4 teeth (5.7%), and increased in size in 6 teeth (8.5%). A higher SR was obtained when a permanent restoration was present (94%) than absent (68.7%) (p=0.005). Conclusion Within the limitations of the study, pulp and periapical status and permanent restoration are found to be strong outcome predictors.

RENKLENMİŞ KÖK KANAL TEDAVİLİ SOL ÜST ÇENE LATERAL VE KANİN DİŞLERİN TEDAVİSİ: OLGU SUNUMU

Discoloration of teeth can be classified according to localization and etiology as internal, external or combined. Before applying conventional invasive techniques such as all ceramic crown, composite, porcelain laminates and porcelain-metal crowns; bleaching can be attempted when indicated. Bleaching with chemical agents is preferred with advantages such as being conservative and development of novel materials and methods. Mechanism of bleaching is not clear but it depends on oxidation reaction. Bleaching agents used in dentistry consist various forms of hydrogen peroxide. Agents such as hydrogen peroxide, sodium perborate and carbamide peroxide are applied. Aim of this case report is to present the efficacy of 37% carbamide peroxide bleaching agent with the treatment of discolored devital teeth and follow-up

Bleaching Discolored Devital Teeth with Using Of New Agents

Absract : The discoloration of teeth on front part form fundamental aesthetic problemes. In order to treat this kinds of teeth, different methods have been used. Yet the most conservatif one is intracoronal bleaching technique. Various agents such as sodium perborate, hydrogen peroxide, carbamide peroxide and sodium perborate have been used as bleaching agent. 30% of hydrogen peroxide has been shown to cause resorption in cervical areas. But nowadays this effect has been proved not to be existed in the newly developed agents. Formula of 40% Hydrogen Peroxide also includes potassium nitrate and fluoride which reduces sensitivity and strengthens enamel and the expected sensitivity in patients has been seen to decrease after bleaching. In this case report, the two patients who had the discolored anterior teeth depending on the endodontic treatment were presented. In line with these findings, 40% of hydrogen peroxide, and sodium perborate were used for the discolored non-vital teeth and by taking the photos of the patient before and after the treatment, they were

Treatment of Furcation Lesions in Devital Teeth with ß-Tricalcium Phosphate + Hydroxyapatite Graft Material: A Case Report

Endoperiodontal lesions are characterized by the presence of periodontal and pulpal disease within the same dental element. Periodontal and pulpal tissues are related to each other by lateral and accessory canals, the apical foramen, and the dentinal tubules. In the dental literature, whether periodontal disease affects pulpal disease or vice versa remains controversial. Pulpal disease is often accepted to cause periodontal disease. The treatment of endodontic-periodontal combined lesions requires both endodontic therapy and periodontal regenerative procedures. The success rate of treatment comprising only an endodontic procedure for such lesions is low. Periodontal regenerative therapy has been used widely to regenerate periodontium lost due to periodontal disease. This therapy is also very successful during the management of endodontic-periodontal lesions. &#x0D; How to cite this article: İzol BS, Doğru AG, İpek F, Günay A. Treatment of Furcation Lesions in Devital Teeth with ß-Tricalcium Phosphate + Hydroxyapatite Graft Material: A Case Report. Int Dent Res 2012;2:81-85.&#x0D; Linguistic Revision: The English in this manuscript has been checked by at least two professional editors, both native speakers of English.

Analysis of initial endodontic treatment outcome and relevant factors

To assess the two-year outcome of initial endodontic treatment and evaluate the relationship between the treatment outcome and relevant factors. A total of 296 patients with 371 teeth received initial endodontic treatment between January 2005 and December 2007 were included in the study. The teeth were treated using crown down technique, and followed for two years. The outcome was examined clinically and radiographically. The relevant factors, including pulp vitality, apical periodontitis, the number of tooth root, and state of root canal obturation, were analyzed. 143 (176 teeth) from 296 patients (371 teeth) were followed for two years. 152 teeth (86.36%) with normal limits were assessed as "healed" (no apical periodontitis, no signs or symptoms). 24 teeth were assessed as "disease", 12 teeth were extracted and 12 teeth were retreated. The healing rate(HR) was statistically higher for vital teeth (95.38%) than that for devital teeth (81.08%). The HR of teeth without apical periodontitis (95.24%) was significantly higher than that with apical periodontitis (73.24%). Other factors were associated with different HR, but no statistical significance (P>0.05). Apical periodontitis and pulp vitality may be prognostic factors for outcome of initial endodontic treatment.

What are the longevities of teeth and oral implants?

To analyse tooth loss and to evaluate the longevity of healthy teeth and teeth compromised by diseases and influenced by therapy as well as that of oral implants. On the basis of an electronic and manual search using key words for survival, success, longevity of teeth, longevity of implants, epidemiology, periodontally compromised, endodontically compromised, risk for tooth extraction 49 full-text articles were identified to construct a traditional review. Among these, six systematic reviews addressing longevity were found. Tooth loss is a complex outcome, it is influenced by the extent of dental caries and its sequelae and/or the presence or absence of periodontitis as well as the decisions taken by dentists when evaluating possible risk factors for rendering successful therapy. In addition, tooth loss is related to behavioural and socio-economic factors and associated morbidity and cultural priorities. Generally, teeth surrounded by healthy periodontal tissues yield a very high longevity (up to 99.5% over 50 years). If periodontally compromised, but treated and maintained regularly, the survival of such teeth is still very high (92-93%). Likewise, endodontically compromised, but successfully treated devital teeth yield high survival and success rates. The survival of oral implants after 10 years varies between 82% and 94%. Teeth will last for life, unless they are affected by oral diseases or service interventions. Many retained teeth thus may be an indicator of positive oral health behaviour throughout the life course. Tooth longevity is largely dependent on the health status of the periodontium, the pulp or periapical region and the extent of reconstructions. Multiple risks lead to a critical appraisal of the value of a tooth. Oral implants when evaluated after 10 years of service do not surpass the longevity of even compromised but successfully treated natural teeth.

Psychophysical experiments of thermoperception in human teeth.

Clinically inconspicuous anterior teeth of subjects 18-53 years of age were stimulated by means of an electrically controlled thermode of 0.5 degree C, 35 degrees C and 71 degrees C for 60 s. In two sets of experiments testing vital anterior teeth the cold stimuli were correctly identified significantly above chance level, making the existence of cold receptors inside the tooth probable. No evidence of a corresponding warm perception in human anterior teeth was found. These results were corroborated in a third experiment by comparative testing of 75 anterior teeth--25 devital and 50 vital--for a possible stimulus spread to other than intradental neural structures. Local surface anaesthesia of the tissues adjacent to the teeth significantly reduced the subject's ability to correctly identify cold stimuli. Investigating the effect of cold stimulus temperatures (0.5 degree C, 15 degrees C and 25 degrees C), no significant difference in correct cold perception was found when the two lower temperatures were applied, while with the 25 degrees C stimulus correct cold perception was at chance level. The latency of correct cold responses increased significantly when stimuli of 15 degrees C instead of 0.5 degree C were applied (t-test p less than 0.05). The latency of correct cold responses (0.5 degrees C) was not significantly influenced by surface anaesthesia. It increased significantly, however, when devital teeth were tested with the 0.5 degree C stimulus (t-test; p less than 0.01).