Dentists

No abstract available.
Dentists ; Humans

No abstract available.
Dentists ; Humans

PURPOSE: Variation in the morphology of gingival papilla may be determined by the shape and position of anatomic crown as well as contact area and embrasure form of individual teeth. However, periodontal biotype classification is regarded to be subjective because of the lack of definite criteria. In this study, we defined the objective parameters which constitute the periodontal biotype and measured their relationship. MATERIALS AND METHODS: 109 of dental casts were prepared using three dimensional scanner and specialized reconstruction software, then acquiredvirtual models were sent to the 20 professional dentists to define the specific periodontal biotypes. Several parameters around periodontal structures were measured from the virtual models; facial surface area of the anterior tooth (AT), anterior papillary area (AP), proportion of the dento-papillary complex, clinical papillary length (PL), and clinical papillary angle (PA). Statistical analysis was performed to confirm the relationship among parameters. RESULTS: Coincidence rate of periodontal biotype within observers was 63.77+/-16.05%. Coincidence rate between observers was 76.15+/-16.43%. Among the parameters measured, PL showed the most positive correlations and PA presented the most negative correlations. The parameter of the AP and PL of six maxillary anterior teeth showed significant correlation coefficient. CONCLUSION: Anterior papillary area and clinical papillary length would be objective parameters for determining the consistent periodontal biotypes.
Crowns ; Dentists ; Humans ; Tooth

BACKGROUND: Even though excellent impression materials are now available for making accurate replication for hard and soft tissue, the numerous dentists have faced lots of obstacles in making simultaneous impressions of multiple abutments. CASE DESCRIPTION: This article describes a modified method of tray fabrication using auto-polymerizing acrylic resin and impression technique for multiple prepared teeth in cases with limitations and difficulties in taking dental impressions. CLINICAL IMPLICATION: This segmental tray technique has several advantages, including higher impression quality, fewer impressions, and being more comfortable for the patient and less stressful for the clinician.
Dentists ; Humans ; Tooth

To achieve an esthetic restoration, visualized information considering the facial aspect of patient is required. As for the reasons of esthetic failure, it could be explained by lack of communication and information such as horizontal, vertical and esthetic line. Therefore, it is important to deliver that the visualized information to dental technicians or other dentists for the success of esthetic treatment. This case report presents the process of visualizing esthetic information and designing the restoration using a digital diagnostic tool; Digital Smile Design.
Dental Technicians ; Dentists ; Humans

STATEMENT OF PROBLEM: Commonly used classification systems do not inform fo dentists the dimension of the available bone at a potential implant site although regarding a variety of morphologic and pathophysiologic aspects using schematic graphs. However, for the implantologist the availability of bone substance is most important independent whether it concerns the jaw basis or the alveolus. PURPOSE OF STUDY: The present article refers to a new evaluation form, to analyze the available bone with regard to optional immediate loading site by site. According to a new systematic implant planning concept will be presented in two case reports. RESULTS: The feasibility of the classification for planning and documentation of immediately loaded implants is presented in two case reports. CONCLUSION: The factor of bone support for immediate functional stability is important in dental implantology. The new systematic implant planning helps to systematically estimate the dimension (ASCIi classification) of the alveolus site by site to evaluate the possibility of immediate loading. The G ttingen classification thus aids to determine the degree of stability that can be expected for the planned solution.
Classification ; Dentists ; Humans ; Jaw

For the purpose of decreasing the chair time in implant cases,the time needed to loosening and fastening the screw must be shortened.Nowadays,the two typical designs of screw head are slot and hexa form.This study aimed at the shortening of loosening and fastening time by modifying the slot and hexa form.Total of twelve dentists participate in these experiments,four of them were experienced and eight of them were novice dentists. 1.There were many differences in the speeds of screw loosening and fastening between personal experiences.Experienced dentists are faster than novice dentists. 2.There were many differences in the speeds by angulation of the implant,by the conditions of the muscle tonicity. 3.Revised slot and hexa heads show the slightly shortened time for screw looseing and fastening.
Dentists ; Head* ; Humans

Dentists ; Humans ; Prosthodontics

Dentists ; Dissent and Disputes ; Humans ; Malpractice ; Practice Patterns, Dentists' ; Professional Competence