They concluded that "the quality of the coronal restoration is significantly more important than the quality of the endodontic treatment for periapical health." This conclusion ruffled quite a few feathers.Till then, the postendodontic restoration was considered as a requirement only for restoring the tooth to function.No doubt, it is a proven fact that apical leakage leads to reinfection, thus causing maximum endodontic failures.
In the same year, Saunders and Saunders studied coronal leakage in root-filled molars.They undertook a study with a radioactive tracer and showed the presence of coronal leakage in spite of the presence of a temporary restoration. Partnersuche harsewinkel Further studies by other researchers led to similar inferences.There has been no consensus as to the timeline in this instance.Here, time alone should not be considered the only factor since leakage can occur because of other factors too.
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J Res Dent [serial online] 2016 [cited 2017 May 13];-5. 2016/4/3/71/188224Oral bacteria and their by-products play a major role in the production of pulpal and periradicular diseases.Keeping the pulpal space free of these microorganisms is a challenging task as these microorganisms have the capacity to penetrate through the minutest of spaces.Correspondence Address: Lalitagauri Mandke Department of Conservative Dentistry and Endodontics, D Y Patil University School of Dentistry, Nerul, Navi Mumbai, Maharashtra India Source of Support: None, Conflict of Interest: None The primary goal of endodontic treatment is to keep the pulpal space free of microorganisms and to prevent recurrent infection. Oral bacteria and their by-products can penetrate this space if there is inadequate coronal or apical seal.The fact that it could affect the outcome of endodontic treatment; moreover, it could be more important than the obturation, was a startling revelation.
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This assessment also sort of undermined the importance of a good obturation.In 1990, two landmark studies served as an eye-opener for clinicians and academicians. studied the penetration of different microorganisms on single-rooted obturated teeth but without coronal restoration.In 19 days, 50% of the canals were contaminated to their full length after being exposed to Staphylococcus epidermidis.A thorough debridement and shaping of the root canal along with a "fluid-tight" obturation can prevent bacterial ingress and ensure a favorable endodontic outcome.For years, the focus of endodontists has been on the apical third of the root canal.