 Main disadvantage of splinting is it makes removal of plaque more difficult, as there will be increased plaque retention at the margins of the splint, which can cause periodontal disease and further loss of periodontal support.A dental splint works by evening out pressure across a patients jaw.A splint can be used to protect teeth from further damage as it creates a physical barrier between lower and upper teeth.In order to treat mobility, teeth can be joined or splinted together in order to distribute biting forces between several teeth rather than the individual mobile tooth.