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GPT Terms – U

January 4, 2010 by Dr. Varun Pandula Leave a Comment

UCLA abutment substand: a colloquial term used to describe a dental crown that is attached directly to the implant body by means of a screw without an intervening abutment

ultimate strength : the greatest stress that may be induced in a material at the point of rupture—called also ultimate tensile strength

ul·tra·vi·o·let: radiant energy of wavelengths shorter than extreme violet and lying beyond the ordinarily visible spectrum. Usually assigned to wavelengths shorter than 380 nm

1un·der·cut 1: the portion of the surface of an object that is below the height of contour in relationship to the path of placement 2: the contour of a cross-sectional portion of a residual ridge or dental arch that prevents the insertion of a dental prosthesis 3: any irregularity in the wall of a prepared tooth that prevents the withdrawal or seating of a wax pattern or casting

2un·der·cut : to create areas that provide mechanical retention for materials placement

uniform color space : color space in which equal distances are intended to represent threshold or above threshold perceived color differences of equal size

u·ni·lat·er·al : relating to one side; one-sided

unilateral partial denture: see UNILATERAL REMOVABLE DENTAL PROSTHESIS

unilateral removable dental prosthesis : a removable dental prosthesis which restores lost or missing teeth on one side of the arch only

unilateral subperiosteal implant : an eposteal dental implant that provides abutments for support of a removable or fixed dental prosthesis in a partially edentulous arch

unstrained jaw relation : 1: the relation of the mandible to the skull when a state of balanced tonus exists among all the muscles involved 2: any jaw relation that is attained without undue or unnatural force and that causes no undue distortion of the tissues of the temporomandibular joints (GPT-4)

upper impression slang: see MAXILLARY IMPRESSION

up·right : the movement of a tooth into an erect or normal position

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Varun Pandula

Varun Pandula

A Dentist by profession but a tech enthusiast by heart, trying to learn and enjoy both the professions.

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About Me

Hi I'm Varun, I'm currently a Dental Surgeon from India practicing from the past few years. I Started this Blog to help dental students as you can see from the name and also constantly try to keep updating information which can be useful for patients and Dental Practitioners as well. You can contact me here to for any Questions. Read More…

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