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Why use pulp capping?

According to the definition of the National Council of Teachers in Conservative Odontology, pulp capping consists of "covering the dentin-pulp tissues with a biomaterial placed in contact with a pulp wound (direct pulp capping) or with dentine (indirect pulp capping), in order to obtain dentin-pulp healing and/or obliteration of the exposed pulp by a neoformed dentinal bridge "(CNEOC, 2011).
The pulp capping thus preserves the vital pulp as well as the dentinogenic potential of the tooth. By preserving the vitality of the tooth, a reoperation is allowed in case of carious recovery.

How to use the MTA Biorep for pulp capping?

MTA Biorep is prepared just prior to its use by mixing the powder with sterile water in a ratio of 3 to 4 drops (according to the desired consistency) for 1 capsule of powder on a glass plate. MTA sets in wet conditions: total drying of the site is contraindicated (Schönenberger Göhring et al., 2004). MTA Biorep is applied in small amounts to the area, and the cavity is closed with a temporary watertight seal. Finally, in a second time, the temporary filling is deposited and a final filling is put in place. We will check the good setting of the MTA with the probe.

Direct pulp capping is a relatively reliable pulp vitality preservation therapy. It is estimated that its success rate at 2 years on temporary tooth at 89% and 52 to 93% according to the study on permanent tooth. Factors that may affect the therapeutic success of pulp capping are (HAS, March 2019):
- the pulp status: in favor of asymptomatic teeth,
- the extent of the carious lesion: to the detriment of lesions affecting more walls,
- the stage of root edification: in favor of permanent immature teeth
- the type of final restoration (to the detriment of the use of glass ionomer cement)


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