Introduction: Although composite resins have improved greatly since their introduction, microleakage is one of the most frequently encountered problems. This study compared the effects of different monomer systems and layering techniques on the bacterial leakage of Cl I composite resin restorations. Methods: Eighty-two sound human third molars were used. The teeth were randomly divided into six...

We study the system that two atoms simultaneously interact with a single-mode thermal field via different couplings and different spontaneous emission rates when two-photon process is involved. It is found that we indeed can employ the different couplings to produce the atom-atom thermal entanglement in two-photon process. The different atomic spontaneous emission rates are also utilizable in g...

PURPOSE This study describes the use of an innovative dynamic implant valve approach (DIVA) for dental implant placement and sinus augmentation procedures. MATERIALS AND METHODS The DIVA implant system was tested in vitro for leakage and mechanical fatigue. A closed sinus elevation procedure with a gel-type bone substitute was performed using the DIVA implant in a swine model (n = 6). Implant...

Objective: to obtain a histological comparison of tertiary dentin after indirect pulp capping procedures using calcium hydroxide or MTA in teeth with deep carious lesions, regarding its morphological characteristics and degree of inflammation induced in the dental pulp. We used 60 third molars with occlusal caries lesions from 30 patients of 17-26 years of age. Class I and II deep cavities were...

Prosthodontic treatment using dental implants is one of the solutions for partially and completely edentulous patients. The peri-implant area is colonized by a large variety of oral microbial complexes. Various prosthesis may provide means of mechanical attachment to the microflora; this in turn allows their aggregation and colonization. There exists a relationship between the peri-implant micr...

This in vitro study evaluated the effect of different apicoectomy angles, instruments used in root-end preparation, and dental materials used in retrofilling on apical sealing. Root ends were resected at 45 or 90 degrees in 80 single-rooted teeth. For each type of apicoectomy, root-end cavities were prepared with either a round carbide #2 bur or an S12/90D ultrasonic tip. The root-end cavities ...

DIANA DIACONU1, MONICA TATARCIUC1,*, ANCA VITALARIU1*, OVIDIU STAMATIN1, LILIANA FOIA2, LAURA ELISABETA CHECHERITA3* 1Grigore T. Popa University of Medicine and Pharmacy Iasi, Department of Removable Prosthesis, Oral Implantology and Dental Technology, 16 Universitatii Str., 700115, Iasi, Romania 2 Grigore T. Popa University of Medicine and Pharmacy Iasi, Department of Surgical Science, 16 Univ...

material after preparation. Crowns were ceTnented onto the teeth using zinc cement, Fuji I, Vitrerner, or C&B Metabond, The samples were thermal-cycled fer 10,OOO cycles, They were then immersed in erythrosine solution, sectioned, and observed under a microscope. Microieakage analyses were performed using a O'4 point system. The data were sLatistica!ly analyzed. There were significant differenc...

Patients with diseased teeth, or those who are difficult to intubate, have a higher risk of dental injury during laryngoscopy. We report 3 cases of smooth endotracheal intubation using a paraglossal technique with a straight Miller blade in patients with poor dentition. Three patients with poor dentition were scheduled to undergo surgery under general anesthesia. All patients presented with ext...