scholarly journals O que é preciso saber sobre microabrasão

2021 ◽  
Vol 42 (2) ◽  
pp. 3-7
Author(s):  
Renato Viégas Cremonese ◽  
Susana Maria Werner Samuel

Objective: Having in mind the growing value that is given to esthetic procedures it has been carried out a literature review about the main polemics that goes around Enamel Microabrasion technique. Action mechanism: the microabrasion compound modifies light refraction and reflection indexes producing an optical effect which allows the camouflage of the subsurface stains. Indications: the technique is indicated to remove any stain, since it is restrict to the most superficial layer of enamel. Advantages: immediate and permanent results with minimum loss of dental structure. Technique: with all care steps taken, a mixture of hydrochloric acid or phosphoric acid and pumice is applied to dental surface for 12 to 16 times, during 10 seconds each application. The application can be done manually or with the help of a low rotation hand-piece. Conclusions: the enamel microabrasion is an effective, safe and conservative technique if compared with other alternatives available. However, some authors affirm that it must be very carefully used because of enamel loss and risks of lesion by the acid.

2017 ◽  
Vol 68 (11) ◽  
pp. 2700-2703 ◽  
Author(s):  
Kamel Earar ◽  
Vasile Iulian Antoniac ◽  
Sorana Baciu ◽  
Simion Bran ◽  
Florin Onisor ◽  
...  

This study examined and compared surface of human dentine after acidic etching with hydrogen peroxide, phosphoric acid liquid and gel. Surface demineralization of dentin is necessary for a strong bond of adhesive at dental surface. Split human teeth were used. After application of mentioned substances at dentin level measures of the contact angle and surface morphology were employed. Surface morphology was analyzed with the help of scanning electron microscopy and atomic force microscopy. Liquid phosphoric acid yielded highest demineralization showing better hydrophobicity than the rest, thus having more contact surface. Surface roughness are less evident and formed surface micropores of 4 �m remained open after wash and air dry providing better adhesive canalicular penetration and subsequent bond.


2019 ◽  
Vol 131 ◽  
pp. 404-409 ◽  
Author(s):  
Weiqing Li ◽  
Ruichao Peng ◽  
Peng Ye ◽  
Xianhe lv ◽  
Tianrong Zhu ◽  
...  

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