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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
381

Measuring the effect of sensory information alterations on robotically assisted dental implant accuracy in a novel 3D printed model

Johnson, Ryan David Patrick 24 June 2024 (has links)
Sense of touch is a crucial component of successful dental implant surgery. The ability to differentiate internal bone microstructure during the drilling process allows clinicians to make needed adjustments to “drift” during the implant osteotomy preparation. As dentists have increasingly employed computer-assisted placement with surgical guides, the neural feedback to the surgeon’s hand has decreased. The Yomi dental robot provides replacement guidance using substitutes for this haptic feedback in addition to enhanced sensory input (visual and auditory). How this combined sensory information affects the executed implant position in comparison to the planned position is the subject of this study. The goal was to design a 3D printed practice model to be used for training in Yomi robot assisted implant placement and then to evaluate how altering combinations of sensory information might affect final implant position. A printed model was created after several prototypes were tested. However, before experimental implant placement could begin, it was found that the available printing process was inconsistent. Models could not be replicated due to errors in printing. The progress in study design, process for model design and creation and technical limitations are described in this paper.
382

In vitro evaluation of optical coherence tomography in the detection of intact dentin and various anomalies within root canal systems

Dhaliwal, Gagan 24 June 2024 (has links)
Optical Coherence Tomography (OCT) is a non-invasive diagnostic technique that utilizes near infrared light to image biological tissue microstructures. Previous research by current authors has shown the potential of OCT as an instrument to provide detailed information about the internal root canal without exposure to radiation. This study was set up to confirm the efficacy of the OCT using a catheter-based imaging probe for detection of intact dentin and modifications within root canals. Dental anomalies or areas of interest for imaging were selected to be internal resorption, vertical root fracture, horizontal root fracture, lateral canal, and bifurcation. This project used the St. Jude/Abbott OPTIS Integrated System, Dragonfly OPTIS Imaging Catheter, dental microscope, extracted teeth with single canals, a vacuum base vise, and handfiles. 11 teeth were selected via inclusion criteria and underwent preparation to simulate anomalies, followed by root canal analysis using OCT. This study determined (1) the minimal apical diameter of 0.9mm needed to fit the OCT catheter to the apex (2) confirmed consistency of method with repeated use, (3) verified presence of simulated anomalies, and (4) established continued functionality after alteration of catheter. In conclusion, OCT has the potential to be a viable diagnostic tool in endodontics. / 2026-06-24T00:00:00Z
383

Practice pattern preferences of dental students the effects of student gender, year of dental study and practice arrangement /

Butters, Janice Mary. January 1997 (has links)
Thesis (Ph. D.)--University of Louisville, 1997. / eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references.
384

Practice pattern preferences of dental students the effects of student gender, year of dental study and practice arrangement /

Butters, Janice Mary. January 1997 (has links)
Thesis (Ph. D.)--University of Louisville, 1997. / eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references.
385

Knowledge, attitudes, and behaviors of federal service and civilian dentists concerning minimal intervention dentistry

Gaskin, Elizabeth Bowles. January 2006 (has links)
Thesis (M.S.)--University of Iowa, 2006. / Supervisor: Steven M. Levy. Includes bibliographical references (leaves 190-201).
386

The soft-tissue profile preferences of a group of lay persons and professionals

Suliman, Shameela Haroon January 2008 (has links)
Magister Chirurgiae Dentium - MChD / Although facial aesthetics has always been a part of orthodontic diagnosis and treatment planning, the criteria for facial evaluation have been somewhat arbitrary. They are often based on parameters from the field of art or from evaluating faces chosen by orthodontists or other professionals. The aims and objectives of the study were to determine the soft-tissue profile preference of a group of lay persons and professionals; to compare the preferences of the male and female assessors (lay persons group) with regard to the preferred profiles for the maleand female patient respectively; to test similarities and differences in the professional's perceptions of the various profiles. This qualitative study was undertaken at the orthodontic clinic at UWC using post-treatment soft tissue profile photographs of patients who had attended the orthodontic clinic. / South Africa
387

A comparative study of the Oral health Status of Cardiac and Non-Cardiac paediatric patients at Tygerberg Hospital.

Zafar, Sobia. January 2008 (has links)
<p>The aim of the study was to determine the oral and debntal health status of pediatric cardiac patients, 12 years of age and younger, and compare them with non-cardiac patients. A total of 150 children, 75 with known cardiac condition (study group) and 75 no-cardiac (control group) were examined. No statistically significant differences were established in the study between the caries experience score for the cardiac and control groups. The study concludes that the cardiac group generally has a higher decay component and a lower missing component which may be an indication of the lack of dental intervention. The gingival inflammation was significantly higher in the cardiac group although the plaque scores were similar in the two groups.</p>
388

A comparative study of the Oral health Status of Cardiac and Non-Cardiac paediatric patients at Tygerberg Hospital.

Zafar, Sobia. January 2008 (has links)
<p>The aim of the study was to determine the oral and debntal health status of pediatric cardiac patients, 12 years of age and younger, and compare them with non-cardiac patients. A total of 150 children, 75 with known cardiac condition (study group) and 75 no-cardiac (control group) were examined. No statistically significant differences were established in the study between the caries experience score for the cardiac and control groups. The study concludes that the cardiac group generally has a higher decay component and a lower missing component which may be an indication of the lack of dental intervention. The gingival inflammation was significantly higher in the cardiac group although the plaque scores were similar in the two groups.</p>
389

A survey of industrial dental programs and a proposal for an adequate dental program in industry a thesis submitted in partial fulfillment ... Master of Public Health ... /

Sauer, Earl Joseph. January 1942 (has links)
Thesis (M.S.P.H.)--University of Michigan, 1942.
390

Esthetics and smile characteristics from the layperson's perspective a computer based survey study, part I /

Ker, Alan Joseph, January 2008 (has links)
Thesis (M. S.)--Ohio State University, 2008. / Title from first page of PDF file. Includes bibliographical references (p. 86-95).

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