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A lingual arch is an orthodontic device which connects two molars in the upper or lower dental arch. The lower lingual arch (LLA) has an archwire adapted to the lingual side of the lower teeth. In the upper arch the archwire is usually connecting the two molars passing through the palatal vault, and is commonly referred as "Transpalatal Arch ...
Removable dentures act as a space maintainer and also prevent the migration of adjacent or opposing teeth, thereby preserving the face height. [75] They are also easy to adjust or add on to in the event of further tooth eruption. [ 75 ]
A bridge is used to span, or bridge, an edentulous area (space where teeth are missing), usually by connecting to fixed restorations on adjacent teeth. The teeth used to support the bridge are called abutments. A bridge may also refer to a single-piece multiple-unit fixed partial denture (numerous single-unit crowns either cast or fused together).
Replacement of a single tooth or a small spanning space. Good oral health status and motivation of patient to maintain oral health. [10] Periodontal status of remaining dentition at a stable and satisfactory level. [10] Abutment teeth of good quality with minimal restorations and enough surface area and enamel present for adhesion. [11]
Other synonyms include: zone of equilibrium, zone of minimal conflict, potential denture space and dead space. It is in this zone that the natural dentition lie, and this is where artificial teeth of complete dentures should be positioned. Complete dentures that are constructed in this way exhibit enhanced stability, retention and comfort.
A removable partial denture (RPD) is a denture for a partially edentulous patient who desires to have replacement teeth for functional or aesthetic reasons and who cannot have a bridge (a fixed partial denture) for any reason, such as a lack of required teeth to serve as support for a bridge (i.e. distal abutments) or financial limitations.
Boeing and Lockheed Martin's joint rocket venture, United Launch Alliance (ULA), plans to upgrade a version of its Vulcan rocket to challenge SpaceX's Starship in the low Earth orbit satellite ...
The thickness increases to 0.6 or 0.7mm wire if it is to move more teeth or a larger/multi rooted tooth. [8] Palatal Finger Spring - These springs are used to move teeth buccally or lingually. Buccal Canine Retractor - These springs are used to bring a buccally placed canine more lingual. Z-Spring - This spring is used to move one or two teeth ...
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