Placement of porcelain crown and dental onlay

The porcelain crown or porcelain veneer is a total covering of the tooth that simulates the entire external anatomy of the natural tooth. Its thickness ranges from 1-1.2 mm. Such dental crowns can be made of porcelain only, or with a core of another material to give it more consistency, such as metal or more recently lithium disilicate (EMAX) or zirconium.

The Dental Onlay or porcelain inlay is a high-strength ceramic chip that is adhered to the tooth surface when teeth have suffered from extensive surface loss due to decay, erosion or to reinforce teeth that have undergone root canal treatment. Dental Onlays reconstruct teeth in a conservative way.

Berroeta Dental Clinic: specialists in the fitting of ceramic or porcelain crowns

For the placement of a porcelain crown, the tooth must be reduced in all its contour between 1.0 and 1.2 mm with a conical shape of 6 degrees, so when the crown is placed it slides down the walls of the tooth until it fits perfectly and completely hermetically.

Following the preparation, a digital impression is taken and a provisional dental crown is placed, and once the adaptation tests have been carried out, it is cemented with a special adhesive or cement.

Dental Onlay and its use in the dental sector

For porcelain crown repair with Onlay, 1.5 mm of material thickness is required to withstand the chewing forces on the occlusal tooth surface only. The rest of the tooth remains intact.

After the preparation, a traditional or digital impression is taken and a temporary implant is placed. Once the appropriate adjustments have been made, it is bonded with a special cement.

Ceramic onlays are used when a large amount of tooth tissue has been lost, for example, after a large caries or trauma, as the retention of a veneer or a dental filling would be very difficult due to the large loss of tooth structure.

They are also used in the case of endodontically decayed teeth. To give consistency to the whole tooth and avoid possible fractures, as endodontic teeth are very weakened after treatment.

Placement of metal-free crowns and porcelain Onlays in Bilbao: the aesthetic solution your teeth need

Porcelain crowns or caps are used to cover weakened teeth, providing the beauty of porcelain and the strength of metal. In order to fit them correctly, it is necessary to reduce the tooth by only 1.2 mm in all its dimension, which will create the necessary space for the components of the caps.

Today, all-ceramic crowns are increasingly in demand due to the high aesthetic appeal they provide.

Zirconium is a highly biocompatible material with a high degree of hardness and is also white, making it a material with excellent functional and aesthetic properties for dentistry.

Today it is undoubtedly the material with which the best possible aesthetics can be achieved in dental reconstructions that in the past would have required less aesthetic metal components.

This is because zirconium has a bending strength of 900 mega-Pascals, a modulus of elasticity of 200 Giga-Pascals and a hardness of 1300 kg/mm2. These properties make it an excellent material to withstand chewing forces.

Porcelain inlays or onlays, on the other hand, are used in cases where it is necessary to replace a large part of the lost tooth structure due to erosion, caries or to reinforce endodontically decayed teeth.

This requires a 1.5 mm thickness of material in the chewing part of the tooth to restore function and aesthetics to the weakened tooth.

Ceramic onlays are the most conservative restorative treatment available today thanks to the development of new ceramics such as lithium disilicate, which has the property of adhering to the tooth. Thanks to this, together with the advance of new technologies, the manufacturing process of onlays has also evolved.

Ceramic onlays are made using the CAD-CAM process. Once the teeth have been prepared, they are scanned by means of a digital scanner in the mouth and the information is then sent by e-mail to the laboratory, which takes charge of the digital design and mills it using a computerised process based on aeronautical technology.

Lithium disilicate inlays require pre-treatment before they can bond to tooth structure, but once bonded they have the fracture resistance of natural enamel (400 Mpa).

Crowns on implants

Crowns on dental implants, an answer to the total or partial loss of teeth

Dental implants are artificial titanium roots that have been developed to meet the aesthetic, chewing and phonetic needs that are diminished after the natural loss of teeth.

Faced with the absence of one or more teeth, patients request a treatment option that solves the aesthetic and functional problem in the most conservative way possible, that is, avoiding the reduction of adjacent teeth for the preparation of a bridge; this can only be achieved by means of dental implants.

To carry out this task, at the Berroeta Dental Clinic, we use titanium. A material that is very biocompatible with the human organism and which also has the capacity to intimately bind living bone to its surface. In this way, the bone accepts the titanium as if it were actually part of the structure of the organism itself, thus producing a biological weld.

Finally, once the implants have healed, the dentures (caps) are stabilised on them and function exactly like natural teeth.

Through this process, dental implants allow us to chew, smile and speak as confidently as with our own teeth.

Furthermore, in some specific and favourable cases, the patient, after undergoing implant surgery, can have a provisional dental prosthesis fitted on the same day of the surgery. This type of treatment is called immediate loading. This type of treatment provides the highest level of comfort, rehabilitation and readaptation of the patient to daily life, but in order for it to be carried out, a series of indispensable characteristics must be met.