Computer technology in dentistry.
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Biomedical subjects
Publications and source records attributed to D M Carlton.
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Rheumatoid arthritis and related arthropathies may produce a wide, confusing range of problems affecting the temporomandibular joint and ultimately the lower face. In order to understand the evolution of therapy for TMJ and facial problems, a general update of overall disease characteristics, current medical therapy, and peripheral joint surgery is presented. This background is integrated into a rationale for treatment of rheumatoid problems affecting the mandible.
A new classification of four types of TMJ involvement is proposed to help orient and direct the medical and surgical treatment of patients with rheumatoid disease and related arthropathies. Clinical symptoms, radiographic findings, facial deformity features, treatment planning, and results are discussed, with case reports that illustrate each type. Interpositional polymer laminates, a new glenoid fossa prosthesis, and a metallic condyle are introduced for use in selected cases where erosion and destruction of the condyle, meniscus, and fossa area have produced significant TMJ dysfunction and occlusal-facial deformity.
A case of osteochondroma of the mandibular condyle has been presented, along with a review of the features of this lesion. A consideration of immediate condylar replacement after benign tumor surgery of the condyle is discussed.
The management of a broken short 30-gauge hypodermic needle after an inferior alveolar dental nerve block in a 3-year-old child is discussed. Because of the possibility of the needle migrating toward vital structures, and because of the psychologic and medicolegal implications that could arise, we believed that the needle should be immediately removed with surgical procedures.
A simple method is presented for developing one-to-one composite soft-tissue and radiographic patient images. Their use in diagnosis, treatment planning, and prediction of the outcome of surgical and orthodontic manipulations of the facial hard tissues to effect soft tissue change is discussed. Complementing cephalometric analysis and model surgery, this technique uses a 35 mm, slide, acetate tracing paper, a pencil, and a series of integumentary changes which follow rearrangements of the underlying skeleton, including the dentition, maxillae, zygomas, and nose. The pretreatment images is traced from a projected 35 mm, slide, which is sized to the cephalometric tracing to obtain a "life-sized" representation of the face. The image is then redrawn, adjusting the dysmorphic parts to the unchanged part of the face to effect balance of the profile and restore normal contours. This recreated image is used then as an objective to which the treatment planning is directed and through which it is commonly seen that the restoration of functional and esthetic balance is a mutually supportive goal. The projected image is of value to the clinician in formulating his treatment goal, but it is more valuable in the visible expression that it gives to his mental image of the ideal outcome. Moreover, it can be readily shared with the patient, who often better appreciates the changes in contours, which he sees daily, than the commonly employed profiles of cephalometric prediction, which are basically foreign to him. The technique is discussed, as are the ratios of hard-to-soft-tissue change, with case reports for demonstration.
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The 11th case of squamous odontogenic tumor is presented, along with a review of the literature concerning this lesion. Possible origin from gingival rests of Serres is postulated.
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A simple method for contructing a cricothyroid membrane puncture device is presented. The merit of cricothyroid membrane puncture and this device is discussed.
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