Efficacy of double antibiotics in hydroxypropyl methylcellulose for bactericidal activity against Enterococcus faecalis and Streptococcus gordonii in biofilm.

Objective: This study aimed to investigate the efficacy of double antibiotics, including ciprofloxacin and metronidazole, in a new vehicle, hydroxypropyl methylcellulose (HPMC), against Enterococcus faecalis and Streptococcus gordonii grown in biofilm.

Design: Human mandibular premolars were prepared and divided into four groups: (i) negative control, (ii) positive control, (iii) infected with E. faecalis and S.

Clinical evaluation of Durapatite submerged-root implants for alveolar bone preservation.

A study was undertaken to evaluate the safety and efficacy of Durapatite cones as an immediate submerged-root implant in the mandibular symphysis region. The study involved 30 patients of which 15 received 96 implants and the other 15 served as controls. The clinical and radiographic results revealed the implants to be well-accepted by alveolar bone.

Compressive strength measurement and microstructure studies of hydroxyapatite cones.

Compressive strength measurement and microstructure studies of standard, diamond bur-ground, and fracture surfaces of durapatite cones were reported. The compressive strength measurements of durapatite cones were variable and strongly dependent on the test method. The fracture force ranged from 1090 to 3692 N and the calculated compressive strengths ranged from 113 (16,333 psi) to 389 mN/m2 (56,462 psi).