athletic mouthguards
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| athletic mouthguards aka | mouth protectors, teeht protectors, mouth guard
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| athletic mouthguards use | protect dentition, tmj, and other oral tissues against blows to chin, top of head, face, mouth-absorb shock
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| types/classification of athletic mouthguards | stock, mouth formed, custom
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| stock | not recommended- poor fit, bulky, interfere w/ talking & breathing, difficult to retain
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| mouth formed | shell-liner or thermoplastic
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| mouth formed shell liner type | hard outer shell-polyviyl chloride: soft liner platicized acrylic gel or silicone rubber-set by chemical or thermal
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| mouth formed shell liner type disadvantages | exposure distorts shape and physical properties of these materials-NOT rec for athletes w/ ortho
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| mouth formed thermoplastic type | immerse in boiling water-then blanch in cold water-adapt w/ mouth-can be used w/ fixed ortho if fitted by a dentist
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| custom made protectors | thermoplastic material-polyvinyl acetate-polyethylene PVA PE
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| thermoplastic copolymer-polyvinyl acetate-polyethylene PVA | physical reaction of hardening on cooling=thermoplastic
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| properties PVA PE | thermal insulators, absorbs water, tensile strength, modulus and hardness decrease after water absorbs, but elongation, tear strength, and resilence increased
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| fluoride custom trays- | thinner than mouthguards-ideal for high prev of caries or risk: allows all surfaces to be covered w/ fluoride at once, farbicate in dental office in same method as mouthguards,
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| APF | 0.5%
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| NaF | 1.1%
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| Sn2F | 0.4%
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| ortho appliances | minor mvmt, correct overbites,overjets;spacing probls, slight malocclusions, one type is Hawley-combo of acrylic and metal wires
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| nightguards | bruxism, clenching, usually worn at night, alleviates wear on the dentition
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| space maintainers | temp replacement for primary teeth lost prematurely-prevents drifting and closure of space
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| Obstructive Sleep Apnea (OSA) | caused by reduced upper airway size and way the muscle acts, appliances advance mandible opening the airway
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| bleaching trays | similar to fluoride trays
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| materials used in oral appliance fabrication-most are thermoplastics | polycarbonates, polyethylene-(DH uses most)-polypropolene-polystyerences-polyvinyl chloride
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| maintenance of oral appliances | rinse b4 and after use w/ cold water, brush daily, store in rigid container, protect from heat and pressure during storage, eval routinely for deterioration-min life is usually 2 yrs-bite through, tearing, general dererioration from chewing it
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| using a vacuum mold heated to resin to the model (sta vac) is an emample of which thermoplastic or thermoset | thermoplastic
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| which type of mouth protector is fabricated by teh dental personnel | custom
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| which arch of the study model is used | maxilla
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| what type of resin was teh mouthguard material used in lab | PVA PE
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| why should the model vacuum plate and frames by sprayed w/ Sta-Lube: | so the material won't get stuck to the cast or the sta vac
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| where is the line drawn on the mouth guard to use as a guide for cutting-facial | 2-3 mm from the mucobuccal fold, starting at most posterior molars
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| where is the line drawn on the mouth guard to use as a guide for cutting-lingual | dividing alveoar arch and palate follow contours
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| storage and care | in a rigid container, rinse w/ cold water b4 and after use, brush w/ cold water once a day
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