TOOTH NECK FILLING
A tooth neck filling is practiced to apply a direct covering, by means of the use of composite materials, on that portion of dentine next to the gum which should be covered but has emerged for traumatic reasons (eg.incorrect brushing) or because of pathological reasons (eg. Periodontal reasons).
This type of treatment is advisable for aesthetic reasons and also due to dental sensitivity.
Dentine has characteristics distinct from enamel:
- Colour: it is a darker colour
- Nerve supply: it is highly supplied by nerves and therefore more sensitive than enamel which has none.
- Hardness: it is less hard and resistant than dental enamel and therefore more subject to caries.
Reconstruction is a practice of conservative therapy aimed at re-establishing the anatomy and function of one or more dental elements compromised by caries or trauma. This type of treatment is advisable when the portion of the tooth to be reconstructed is of medium size and one or two parts of the surface are involved. This practice, like a filling, is carried out in one session only directly by the specialized clinic.
When the dental element to be reconstructed exceeds specific dimensions, it is advisable to use an indirect reconstruction technique called inlays (which is carried out in the laboratory and not directly in the mouth).
This therapy is carried out in two sessions. During the first session a cavity is prepared, where the inlay will be placed, with eventual elevations on the floor of the cavity, called BUILD UP. After the preparation of the cavity, an impression will be taken of both arches which will permit the technicians in our laboratory to construct the exact missing part.
During the second appointment, the piece made in the laboratory is cemented in the cavity. Adhesion is guaranteed with the aid of chemical adhesives which permit a perfect fitting between the tooth and the inlay.
An inlay is suitable when a large reconstructions is necessary because it guarantees the best possible closure between the tooth and the reconstruction over time and reduces the risk of caries. It has maximum resistance and lasts longer than the usual filling or reconstruction. Furthermore, an inlay also restores the correct physiological form of the tooth and its correct function.
A ceramic veneer consists of fine porcelain plates which are applied on the external surfaces of front teeth. A previous diagnosis and cure will be carried out. This cure masks imperfections of colour, shape and/or position.
Their average thickness is 0.5 – 0.7 mm.
The fineness of the ceramic gives the veneer a very natural semi-transparent appearance. Unlike composite materials, it does not undergo pigmentation change and discolouring in the long term.
The tooth is prepared to accommodate the restoration by eliminating a small portion of the tooth substance within the limits of the enamel. A precise impression will then be taken on which the laboratory technician will build the veneer to be positioned and cemented appropriately on the affected dental surface.
Thanks to the digitization and preliminary study of the individual case, it is possible to perform a simulation of the final result, to be discussed with the patient before implementation.
We have prepared a list showing when this treatment is indicated:
- Dyschromias (permanent spots) not treatable with bleaching
- Colour defects and / or deterioration of large composite restorations
- Enamel defects (eg imperfect amelogenesis)
- Diastemi (space between the teeth)
- Teeth with slight position anomalies in order to obtain an orthodontic-like alignment
- Shape anomalies (eg conoid teeth) or need to transform the shape, making it more suitable for the subject.
- Teeth abraded by chemicals (acidic substances such as lemon, coca cola …) or mechanical (eg bruxism, incorrect brushing technique …)
At our centre, it is possible to carry out an aesthetic consultation aimed at creating the most appropriate smile for the specific case.