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Bruxism is involuntary, excessive grinding, clenching or rubbing of teeth during non-functional movements of the mastication. it is a destructive habit that may result in tooth wear. Although research on bruxism is extensive, its etiology remains debatable. The literature suggests that bruxism is correlated with both experienced and anticipated life stress. The purpose of this article is to review describe 3 out of 8 cases of severe bruxism in children of similar age with different life histories and to discuss the factors that could have triggered this parafunctional condition..&nbsp

Tooth loos and wearing of the hard dental tissues are commonly known to significantly affect quality of elderly life. Multiple tooth loos and extreme loss of the hard dental tissues of the supporting teeth results in loss of normal occlusal plane and reduction of vertical dimension of occlusion. These conditions leads on changes in the temporomandibular joint and loos of normal face proportions. Different approaches for the therapeutic solutions can be considered depending on the number of the remaining teeth and hard dental tissues loss. Therapy of multiple tooth loos and dental tissue wear in elderly patients is complex from occlusal acrylic plates to definite prosthetic therapy with fixed or and removable prosthetic appliances. In the present paper combined prosthetic therapy is demonstrated to solve the problem of vertical occlusal plane correction of the elderly patient with heavily loos of upper frontal and lower lateral teeth and reduced vertical dimension of occlusion.

Pravilno određivanje međučeljusnih odnosa predstavlja temelj uspješne i kvalitetne protetske rehabilitacije pacijenata. Činjenica je da dobar međučeljusni registrat uvelike umanjuje potrebu za intraoralnim korekcijama protetskog nadomjestka s čime se štedi dragocjeno vrijeme i umanjuju troškovi. Na osnovi temeljitog kliničkog pregleda i detaljne analize okluzije terapeut procjenjuje da li je postojeća okluzija zadovoljavajuća ili je potrebna njena korekcija. Na temelju analize terapeut planira terapiju koja će pacijentu pružiti optimalnu rehabilitaciju. Pod pojmom određivanja međučeljusnih odnosa podrazumijevaju se zahvati koji su potrebni za pravilno definiranje fiziološkog položaja donje čeljusti u odnosu na gornju čeljust. Međučeljusni odnosi se određuju u vertikalnoj i horizontalnoj dimenziji. Odabir postupaka za određivanje međučeljusnih odnosa ovisi o tome je li postojeća okluzija očuvana i prihvatljiva ili nije jasno definirana. Ukoliko postoje stabilni okluzijski odnosi dovoljno je registrirati postojeću okluziju putem registrata izrađenog od voska ili elastomera. U situacijama kada je postojeća okluzija nezadovoljavajuća ili rasporedom preostalih zuba nije osigurana okluzija se mora definirati pomoću zagriznih šablona. Izrada nadomjestka u pravilnim okluzijskim odnosima preduvjet je uspješne fiksno protetske rehabilitacije pacijenta. For achieving a successful and high-quality patient rehabilitation jaw relation records are fundamental component of prosthodontic therapy. It is a fact that accurate jaw relation record minimizes the need for intraoral adjustments of fixed restorations which means lover costs and more time saving. After detailed clinical examination and detailed occlusion examination therapist evaluates if existing patient’s occlusion is adequate or needs corrections. Based on gathered information planning of optimal rehabilitation therapy is done by doctor of dental medicine. Determination of jaw relations means using different approaches for determinate physiological position of lower jaw to upper jaw. Jaw relations can be determinate in vertical and horizontal dimension. Choose of approach for determinate jaw relations depends on existing patient’s occlusion. If existing patient’s occlusion is accurate it is enough to register it with different materials such are pink wax or elastomers. In situations when existing patient’s occlusion is inadequate or unstable due to bad position of remained teeth, jaw relations must be determined with bite plates. Fabricating fixed prosthetic restoration in accurate occlusion is mandatory for achieving optimal prosthetic rehabilitation of a patient.

Over-eruption of maxillary molar because of loss of the opposing teeth creates occlusal interference and functional disturbances. To provide prosthetic treatment of the missing teeth, these over-erupted teeth need to be intruded, but molar intrusion is difficult in adults. In this report, we present a simplified version of the orthodontic appliances in conjunction with lower removable acrylic bite plate to intrude the over-erupted molars. The method advocated here, uses a removable acrylic plate resulting in a true molar intrusion, thus eliminating an additional surgical step of implant placement. The results showed that the biological responses of the teeth and the surrounding bony structures to the intrusion appeared normal and acceptable.