Strength assessment of endodontically-treated teeth based on a 3D numerical model
Journal Title: Journal of Stomatology (Czasopismo Stomatologiczne) - Year 2013, Vol 66, Issue 1
Abstract
Introduction. Knowledge of the biomechanical behaviour of endodontically-treated teeth underloading in the oral cavity should be included in the clinical proceedings. Because it is difficult to analyze stress distributions in vivo, computer methods are increasingly being used. Aim of the study. To perform a comparative numerical analysis of stresses and strains in healthy and endodontically-treated teeth with the canal filled with gutta-percha or resilon. Materials and methods. The study was carried out on a 3D model of the upper incisor with an extremely well-preserved crown (with only an endodontic access opening) after virtual simulation of canal preparation with 2% taper instruments and gutta-percha or resilon filling at 2 mm from the root apex. The model was exposed to a load of 100 N corresponding to the occlusal situation of the incisors in centric occlusion. To determine the distribution of stresses and strains, the finite element analysis was used. Results. The maps of stress and strain distributions in all three analyzed models were very similar to each other. Increased stress concentrations was found cervically and at the middle of the root (mainly on the labial side). Stresses grew from the root apex towards the crown, with the highest value at the outer surface of the tooth, and were the lowest inside the canal. Strains ε were minimal and reached values of 10-4. Conclusion. Within the limitations of the study, it can be concluded that the physiological load of the incisor with wellpreserved crown after endodontic treatment causes stress and strains similar to a healthy tooth. Filling the canal with either gutta-percha or resilon results in comparable stress distribution. An indication of the most strained areas, which are the cervical region and the middle parts of the root, is of clinical value.
Authors and Affiliations
Anna Kierklo, Kamil Cybula, Małgorzata Pawińska, Łukasz Derpeński
Keywords
Related Articles
- EP ID EP57681
- DOI -
- Views 88
- Downloads 0
Wpływ czynników środowiskowych wewnątrz i zewnątrzpochodnych na powstawanie ubytków niepróchnicowych
Wstęp. W ostatnich latach odnotowuje się częstsze występowanie ubytków niepróchnicowego pochodzenia. Uważa się, że przyczyną ich powstawania są czynniki mechaniczne, fizyczne i chemiczne. Cel pracy. W pracy podjęto próbę...
Evolution of computer-assisted planning systems used in implant dentistry in the first decades of the 21st century
Digital techniques in dentistry have been developing rapidly in the past 15 years, irreversibly changing modern dentistry with the implant dental procedures, to become one of the most influenced areas of dental sciences....
Surgical treatment of lower lip carcinoma with Karapandzic method – own observations
Introduction: A satisfactory functional and aesthetic outcome of lip cancer resection is an essential guideline when selecting the method of tissue reconstruction. Aim of the study: To present initial assessment of Karap...
Stan narządu żucia seniorów z ośrodków pomocy społecznej i domów rodzinnych w województwie zachodniopomorskim
Wprowadzenie: zachowanie prawidłowej czynności żucia zapewnia korzyści socjalne i biologiczne w zakresie estetyki, komfortu, zdolności żucia, mowy i odczuwania smaku.Cel pracy: ocena narządu żucia seniorów z domów pomocy...
Kompleksy insulinopodobnego czynnika wzrostowego (IGF-I) w ślinie ludzkiej
Wstęp: W chwili obecnej wykrywa się w ślinie różne aktywne biologicznie peptydy, do których należą między innymi insulinopodobne czynniki wzrostowe: IGF-I i IGF-II. W osoczu krążą one w postaci kom...