Are combined bleaching techniques better than their sole application? A systematic review and meta-analysis.
Andres Felipe Millan CardenasBianca Medeiros MaranLucila Cristina Rodrigues AraújoFabiana Suelen Figuerêdo de SiqueiraLetícia Maíra WambierCarla Castiglia GonzagaAlessandro Dourado LoguercioAlessandra ReisPublished in: Clinical oral investigations (2019)
If clinicians are to choose between combined or sole AH bleaching, the solely AH may be preferable; combined bleaching may potentiate the risk of TS without benefits in color change. For combined or sole IO bleaching, no important clinical difference in color change and risk of TS were detected; however, intensity of TS could not be compared due to lack of data. Further studies should be conducted due to the low/very low quality of the evidence.