Greetings, dear professor Mr. Dr. Barati and other dear professors and respected colleagues. The most important factor in determining the type of restoration is the amount of lost tooth tissue. Regarding the time of definitive restoration, a few points should be noted: the presence of periapical lesion and the size of it If the tooth does not have a lesion and is not tender, immediate restoration can be done immediately after the endodontic to ensure proper protection against bacteria and oral fluids. It should be done immediately because Kuwait cannot provide proper flood for 3 weeks.
If the tooth has a peri-apical lesion and it is smaller than 2 mm, the permanent restoration can be done immediately. But if the lesion is larger than 2 mm, it is better to perform amalgam or composite full cusp coverage and follow-up and then a veneer for one year because the elasticity coefficient of crown is higher than that of iatrome teeth. As a result, chewing forces enter the end of the root instead of the collar and can delay the repair of the lesion or cause failure.
Regarding the restoration of endodontic teeth in the anterior teeth, if the crown lesions are mild, i.e. the marginal ridge is healthy, the cingulum and the incisal edge are healthy, we will eventually have one or two small lesions or proximal restoration; it can be repaired with composite only. If the color changes Let’s have Vital Blighink and after restoration, porcelain veneer can be used for more beauty (not strength).
Anterior teeth with a significant crown lesion, i.e. marginal ridge and mind without incisal edge, crown fracture or the base of a fixed or partial prosthesis; if the cross section of the canal is circular, provided that we have at least 2 mm of dental tissue and the patient has a suitable occlusion (e.g. deep bite) FRC composite repair and then PFM or all ceram coating
But if the cross-sectional area of the canal is oval, it must be a post cast and crown
The upper lateral tooth follows the rule of the lower anterior teeth, because the size of these teeth is small, after endo, due to the little remaining tissue, post cast and crown should be done.
In canine teeth, ferrule is very important. If the tissue is not enough or the occlusion of the patient is canine guidance, only a post casting cast.
In upper premolars, in case of mild tissue damage, i.e. only the access cavity or a small moiado cavity, provided that 1 mm of the marginal ridge is left, it can be repaired only with composite.
But if we have a wide moiado hole, the post inside the channel is better to be FRC.
In premolars with high tissue damage, for example, mod cavity, the treatment is to shorten the cusps, post inside the canal, composite repair and veneer. If there are two walls or less remaining, cast post cast and crown, in this case, the ferrule is very important. If it is not enough, it is better to create it with cl surgery.
In molars, if the hole is only at the access level, only repair is enough. It is better to use Gilite for better flooding in the orifices.
If the two marginal ridges are lost, the buccal and lingual walls without support, the round canal cross-section, the length of the pulp chamber is less than 3 mm = prefabrication post restoration and veneer
If the cross-section of the tooth canal is oval under the same conditions, the cast will be cast and covered.
If three or more walls are missing, regardless of the shape of the canal, post-cast treatment and veneer
