Your browser doesn't support javascript.
loading
Show: 20 | 50 | 100
Results 1 - 2 de 2
Filter
Add more filters










Database
Type of study
Language
Publication year range
1.
J Clin Pediatr Dent ; 40(6): 472-479, 2016.
Article in English | MEDLINE | ID: mdl-27805895

ABSTRACT

AIM: Study the topographic features of dentin after caries removal with a chemomechanical agent (Papacarie) compared with the conventional drilling method. STUDY DESIGN: The sample included 7 exfoliated and extracted primary teeth with carious dentin lesions, not reaching the pulp. Each tooth was sectioned longitudinally through the center of the carious lesions into two halves. The teeth were then divided into two groups according to the method of caries removal. Following caries removal, dentin topography and the cut section were examined using the scanning electron microscope. RESULTS: Papacarie produced an irregular, porous, rough and globular dentin appearance. The dentin surfaces were generally free of smear layer, visible bacteria and the dentinal tubules were opened. The dentin cut surfaces showed patent dentinal tubules with open orifices. The drilling method created a smooth and amorphous surface with a continuous smear layer occluding the dentinal tubules. Numerous bacteria were also observed. The cut dentin surfaces showed patent dentinal tubules with their orifices plugged with smear layer. CONCLUSIONS: Papacarie produced a rough and porous surface with partial or complete removal of the smear layer and opened dentinal tubules, while the drill produced a smooth surface with uniform smear layer occluding the dentinal tubules.


Subject(s)
Dental Cavity Preparation/methods , Dentin/ultrastructure , Papain/therapeutic use , Tooth, Deciduous/ultrastructure , Bacteria/ultrastructure , Collagen/ultrastructure , Dental Caries/microbiology , Dental Caries/pathology , Dental Caries/therapy , Dental Cavity Preparation/instrumentation , Dental High-Speed Equipment , Dentin/drug effects , Dentin/microbiology , Humans , Microscopy, Electron, Scanning , Porosity , Smear Layer/pathology , Tooth, Deciduous/drug effects , Tooth, Deciduous/microbiology
2.
J Clin Pediatr Dent ; 26(1): 81-5, 2001.
Article in English | MEDLINE | ID: mdl-11688819

ABSTRACT

The purpose of this study was to compare pulpal and periapical tissue reactions to electrosurgery versus formocresol pulpotomy techniques in the primary teeth of dogs. The study was conducted on 33 primary teeth of three mongrel dogs between the ages of one to three months. Each dog had three teeth treated by Formocresol Pulpotomy with Mechanical Coronal Pulp Removal (FC), three teeth treated by Electrosurgery Pulpotomy with Mechanical Coronal Pulp Removal (ES/MCPR), three teeth treated by Electrosurgery Pulpotomy with Electrosurgical Coronal Pulp Removal (ES/ECPR), and two teeth serving as untreated Controls. Dogs one, two and three were sacrificed performing the pulpotomies at two, four and six weeks, respectively. The pulp, periapical tissue and after surrounding bone were submitted to histological examination and the histological reaction was recorded. The results were fourteen out of 18 unfavorable and zero out of three favorable histological reactions occurred in the FC treated teeth. Six out of 18 unfavorable and one out of three favorable histological reactions occurred in the ES/MCPR treated teeth. Nine out of 18 unfavorable and two out of three favorable histological reactions occurred in the ES/ECPR treated teeth. One out of 18 unfavorable and zero out of three favorable histological reactions occurred in the untreated Control teeth. The conclusion of this study is that of the three experimental groups, the teeth treated by Electrosurgery Pulpotomy with either Mechanical or Electrosurgical Coronal Pulp Removal exhibited less histopathological reaction than the teeth treated by Formocresol Pulpotomy.


Subject(s)
Electrosurgery , Formocresols/therapeutic use , Pulpotomy/methods , Tooth, Deciduous/pathology , Animals , Dental Pulp/drug effects , Dental Pulp/pathology , Dental Pulp Cavity/drug effects , Dental Pulp Cavity/surgery , Dental Pulp Necrosis/etiology , Dental Restoration, Permanent , Dentin, Secondary/drug effects , Dogs , Electrosurgery/adverse effects , Electrosurgery/methods , Fibrosis , Formocresols/adverse effects , Homeostasis , Necrosis , Periapical Abscess/etiology , Periapical Periodontitis/etiology , Periapical Tissue/drug effects , Periapical Tissue/pathology , Pulpotomy/adverse effects , Root Resorption/etiology , Tooth Crown/drug effects , Tooth Crown/surgery , Tooth, Deciduous/drug effects , Tooth, Deciduous/surgery , Zinc Oxide-Eugenol Cement
SELECTION OF CITATIONS
SEARCH DETAIL
...