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Azerbaycan Saytlari

 »  Home  »  Endodontic Articles 13
Endodontic Articles 13

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» Remaining dentine thickness and human pulp responses
By JofER editor | Published 12/25/2008 | Endodontic Articles 13 | Unrated
P. E. Murray, A. J. Smith, L. J. Windsor & I. A. Mjor
Oral Biology, Indiana University School of Dentistry, Indianapolis, IN, USA.
Oral Biology, School of Dentistry, The University of Birmingham, Birmingham, UK.
NIOM, Scandinavian Institute of Dental Materials, Oslo, Norway.
College of Dentistry, University of Florida, Gainesville, FL, USA.


Aim.
To evaluate pulp responses as a function of remaining dentine thickness (RDT) of 98 class V cavity preparations in 49 teeth of 31 patients aged 10-16 years.

Conclusions.
Cavity RDT mediates a powerful influence on underlying pulp tissue vitality but it has little effect on reactionary dentine secretion and inflammatory activity. Gross tissue injury explains the poor pulp capping prognosis following exposure and underlies the need to avoid this type of injury. Following restoration, a RDT of 0.5 mm or greater is necessary to avoid evidence of pulp injury.
» Radiographic features and outcome of root canal treatment carried out in the Lodz region of Poland
By JofER editor | Published 12/23/2008 | Endodontic Articles 13 | Unrated
E. Boltacz-Rzepkowska & H. Pawlicka
Department of Conservative Dentistry, Institute of Dentistry, Medical University of Lodz, Poland.  

Aim.
The aim of this study was to assess the radiographic features and factors affecting the long-term results of root canal treatment in the Lodz region of Poland.

Conclusion.
The radiographic technical quality of the root canal treatment was associated with the outcome that root fillings of adequate standard were associated with health more often than inadequate root fillings. Pulpotomy was associated with periapical disease in the majority of cases.
» Oral treponemes in primary root canal infections as detected by nested PCR
By JofER editor | Published 12/18/2008 | Endodontic Articles 13 | Unrated
I. N. Rocas, J. F. Siqueira Jr, A. F. B. Andrade &M. Uzeda
Department of Endodontics, Faculty of Dentistry, Estacio de Sa University
Department of Microbiology, State University of Rio de Janeiro, and Institute of Microbiology, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil.


Aim.
To investigate the prevalences of four Treponema species in primary root canal infections using a nested PCR assay.

Conclusions.
The species T. denticola was detected in a large number of the cases examined; the prevalence of T. socranskii was also relatively high. The species T. vincentii and T. pectinovorum were also found, but in a smaller number of cases. Based on these data, the recognized pathogenicity of these microorganisms and their involvement with other oral diseases, they should be included in the restricted set of putative endodontic pathogens.
» Effect of X-ray beam angulation and intraradicular contrast medium on radiographic interpretation of lower first molar root canal anatomy
By JofER editor | Published 12/18/2008 | Endodontic Articles 13 | Unrated
H. J. Naoum, R. M. Love, N. P. Chandler & P. Herbison
Departments of Oral Rehabilitation, Stomatology, Preventive and Social Medicine, University of Otago, Dunedin, New Zealand.

Aims.
To compare evaluator radiographic interpretation of noncontrasted and contrasted root canal anatomy on radiographs taken at a 0 or 308 mesial angle to the orthoradial orientation.

Conclusions.
Under the conditions of this study, conventional radiographs taken at a 08 orientation provided more information than 308 radiographs. Contrast medium improved radiographic interpretation of canal anatomy, especially when used with 308 radiographs.
» Biocompatibility of dental materials used in contemporary endodontic therapy: a review. Part 1. Intracanal drugs and substances
By JofER editor | Published 12/15/2008 | Endodontic Articles 13 | Unrated
C. H. J. Hauman & R. M. Love
Departments of Oral Rehabilitation, and 2Stomatology, School of Dentistry, University of Otago, Dunedin, New Zealand.

Irrigation solutions and intracanal medicaments are used within the root canal to clean and aid in disinfecting the dentinal walls. Although these materials are intended to be contained within the root canal, they invariably contact the periapical tissues, either through inadvertent extrusion through the apex or leaching. This paper is a review on the methodology involved in biocompatibility testing followed by a discussion on biocompatibility of contemporary intracanal drugs and substances used in endodontics.


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