No abstract

Premedication with midazolam plus low-dose ketamine prior to surgical extraction of third molars can provide the patient with a comfortable procedure and good postoperative analgesia, with less swelling and significantly less pain.

Since times immemorial, dentists have faced the challenge of providing accord between function and esthetics. The occlusal plane, lost in patients rendered edentulous, should be relocated if complete dentures are to be esthetically and functionally satisfactory.   Changes in the plane of occlusion modify the physical and functional relationship of the oral musculature leading to an alteration in function, comfort and also the esthetic value.   Considering the importance of the accurate establishment of the location and the effect of the inclination of the established occlusal plane on function, esthetics and speech, a method to conform it to the occlusal plane that existed in the natural teeth seems necessary.   This paper describes a custom-made instrument to check for the parallelism of ala-tragus line to the occlusal plane and also to check for the parallelism of occlusal plane to interpupillary line.

The aim of the study was to investigate different procedures to check for the most effective disinfection method and most dimensionally accurate impressions post-treatment with disinfectant. Five alginate impressions, each of thirty-two dentate patients were made with 24 hours interval. Impressions were divided into five categories: Group I included alginate impression with only water rinsing (Control). Group II were with immersion in chlorhexidine gluconate solution, Group III were spraying and Group IV were impression of alginate mixed with chlorhexidine solution. Group V comprised of impressions taken after pre-procedural mouth rinsing. Samples were inoculated in blood agar media for 3 days at 37°C. The impressions were poured in type III dental stone. The inter-molar distance, inter-canine distance, the antero-posterior distance and the depth of the cast were measured with Digital Vernier calipers. The results indicate the presence of highest number of bacterial colonies on Group I impression i.e. the control group. Least bacterial count was found in Group V followed by Group III, Group II and Group IV. Highest dimensional changes were seen in Group IV followed by Group III and Group II casts. Group V was found to be most dimensionally stable. Within the limitations of the study, it was concluded that the most effective and accurate method of disinfection is pre-procedural rinsing followed by spraying and immersion. Internal disinfection was found to be the least effective method with high bacterial count as well as high dimensional changes.