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Any deficiencies in the provisional crown can be amended by the addition of more temporary crown and bridge material, or a light cured composite. [6] If a temporary crown becomes de-cemented, it is important that a dentist examine the patient as overeruption of the opposing teeth may prevent accurate fitting of the final crown. [8]
The management of the loose crown includes immediate recementation or a replacement crown, depending on the assessment conducted by the dentist. [citation needed] The factors that are taken into consideration in making this decision include the strength of the temporary crown to be placed and occlusal forces.
Temporary crowns can either be direct, if constructed by the dentist in the clinic, or indirect if they are made off-site, usually in a dental laboratory. Generally direct temporary crowns tend to be for short-term use. Where medium-term or long-term temporisation is required, the use of indirect temporary crowns should be considered. [10]
Passive eruption is known as movement of the gingiva apically or away from the crown of the tooth to the level of Cementoenamel junction (CEJ) after the tooth has erupted completely. Problems in gingival tissue migrating apically can give rise to what is known as altered or delayed passive eruption . [ 22 ]
Temporary restoration is a temporary filling of a prepared tooth until permanent restoration is carried out. It is used to cover the prepared part of the tooth, in order to maintain the occlusal space and the contact points, and insulation of the pulpal tissues and maintenance of the periodontal relationship.
Provisional (or temporary) luting agents are used specifically for inter-appointment fixation of temporary restorations, prior to cementation of a permanent restoration. [20] It is mainly provisional crowns and bridges (fixed partial dentures) that are cemented with eugenol-containing temporary cements, but sometimes they may be used for ...
Hair thinning can either be temporary or permanent. Balding is permanent hair loss defined by excessive hair loss, and this is usually hereditary. Even COVID-19 can cause hair loss.
The porcelain on crowns should be expected to discolour, fracture or require repair approximately every ten years, although there is significant variation in the service life of dental crowns based on the position in the mouth, the forces being applied from opposing teeth and the restoration material. Where implants are used to retain a ...