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News Bulletin : ADA News Bulletin April 2011
24 APRIL 2011 GEnERAL dESIGn PRInCIPLES patient’s sports historY When designing mouthguards, the patient’s age, sport, and level of participation should be taken into consideration. The patient should be questioned as to whether they have worn a mouthguard before, if the answer is affirmative, what type of mouthguard. Past sporting injuries should be investigated as well as any current orthodontic treatment, crown and bridge restorations, implants or dentures. orthodontic cases Orthodontic cases should have custom-built mouthguards. Dentures and orthodontic appliances should not be worn during sport. There can be anatomical variations which will change the mouthguard design, such as a severe Class II malocclusion (a dentition at risk), a Class III malocclusion requiring an accurate bite registration, missing, carious or unerupted teeth. The primary dentition presents challenges in mouthguard construction due to short sulcus depth and no tissue undercuts to aid retention. Fig 3. Bicycle – age 10. Fig 5. Example of a modern mouthguard. pressure laminated mouthguards Pressure laminated mouthguards offer flexibility in design and construction. Mouthguard blanks of different thicknesses and hardness can be laminated together allowing variations in design and stiffness. In the mixed dentition the mouthguards should go to the distal of the maxillary first permanent molar, it should have thickness of 2–3 mm labially, 3 mm occlusally, and 2 mm palatally. The labial flange should be 2 mm from the vestibular reflexion, the palatal flange 10 mm from the gingival margin and there should be balanced occlusal contact with the lower teeth. For elite sports people with increased risk of injuries, the mouthguard should enclose the maxillary teeth to the distal of the second molars. For standard club sports, the mouthguard should extend to the distal of the maxillary first permanent molar. Brett Dorney On behalf of the ADA Inc. Oral Health Committee committee report Fig 4. Rugby – age 15. “When designing mouthguards, the patient’s age, sport, and level of participation should be taken into consideration...Past sporting injuries should be investigated as well as any current orthodontic treatment, crown and bridge restorations, implants or dentures.”
ADA News Bulletin March 2011
ADA News Bulletin May 2011