“…Three studies were multi-arm trials [ 48 , 52 , 53 ]. The adjuncts included were: (1) antimicrobial photodynamic therapy (aPDT) indocyanine green (ICG) [ 54 , 55 ], (2) aPDT methylene blue (MB) 0.005% [ 56 , 57 ], (3) aPDT MB 1% [ 47 , 58 , 59 , 60 ], (4) aPDT phenothiazine chloride (PC) [ 61 , 62 ], (5) aPDT toluidine blue O (TBO) [ 53 ], (6) chlorhexidine (CHX) chip [ 52 , 63 , 64 ], (7) CHX xanthan gel [ 65 , 66 ], (8) doxycycline hyclate (DH) gel [ 50 , 67 ], (9) metronidazole (MET) gel [ 68 , 69 ], (10) minocycline (MINO) gel [ 49 , 70 ], (11) MINO microspheres [ 48 , 71 , 72 ], (12) povidone iodine (PI) 10% irrigating solution [ 73 ], (13) sulfonic/sulfuric acid (SA) gel [ 51 ], and (14) tetracycline (TC) fibers [ 52 ]. SMD alone was used as the reference comparator arm.…”