Please select the arm or intervention descriptions that belong to the clinical trial below.
Title: Influence of Moment of Systemic Metronidazole and Amoxicillin Administration in the Treatment of Chronic Periodontitis: a Randomized Clinical Trial.
Brief Summary: The aim of this multicenter randomized clinical trial is to compare the clinical, microbiological and immunological effects of the adjunctive use of systemic metronidazole plus amoxicillin administered in different phases of the treatment of generalized chronic periodontitis.


Options:
A: Arm Label: Control; Type: PLACEBO_COMPARATOR; Interventions: Procedure: Scaling and root planing (SRP), Other: Placebo 400 (14 days), Other: Placebo 500 | Arm Label: MTZ 250 (7 days); Type: ACTIVE_COMPARATOR; Interventions: Procedure: Scaling and root planing (SRP), Drug: Metronidazole 250 (7 days), Drug: Amoxicillin, Other: Placebo 250 (7 days) | Arm Label: MTZ 400 (7 days); Type: ACTIVE_COMPARATOR; Interventions: Procedure: Scaling and root planing (SRP), Drug: Metronidazole 400 (7 days), Drug: Amoxicillin, Other: Placebo 400 (7 days) | Arm Label: MTZ 250 (14 days); Type: ACTIVE_COMPARATOR; Interventions: Procedure: Scaling and root planing (SRP), Drug: Metronidazole 250 (14 days), Drug: Amoxicillin | Arm Label: MTZ 400 (14 days); Type: ACTIVE_COMPARATOR; Interventions: Procedure: Scaling and root planing (SRP), Drug: Metronidazole 400 (14 days), Drug: Amoxicillin | Intervention Type: PROCEDURE; Name: Scaling and root planing (SRP); Assigned to Arm(s): Control, MTZ 250 (14 days), MTZ 250 (7 days), MTZ 400 (14 days), MTZ 400 (7 days) | Intervention Type: DRUG; Name: Metronidazole 250 (7 days); Assigned to Arm(s): MTZ 250 (7 days) | Intervention Type: DRUG; Name: Metronidazole 400 (7 days); Assigned to Arm(s): MTZ 400 (7 days) | Intervention Type: DRUG; Name: Metronidazole 250 (14 days); Assigned to Arm(s): MTZ 250 (14 days) | Intervention Type: DRUG; Name: Metronidazole 400 (14 days); Assigned to Arm(s): MTZ 400 (14 days) | Intervention Type: DRUG; Name: Amoxicillin; Assigned to Arm(s): MTZ 250 (14 days), MTZ 250 (7 days), MTZ 400 (14 days), MTZ 400 (7 days) | Intervention Type: OTHER; Name: Placebo 250 (7 days); Assigned to Arm(s): MTZ 250 (7 days) | Intervention Type: OTHER; Name: Placebo 400 (7 days); Assigned to Arm(s): MTZ 400 (7 days) | Intervention Type: OTHER; Name: Placebo 400 (14 days); Assigned to Arm(s): Control | Intervention Type: OTHER; Name: Placebo 500; Assigned to Arm(s): Control
B: Arm Label: Control; Type: PLACEBO_COMPARATOR; Interventions: Procedure: Scaling and root planing, Drug: Placebos active phase, Drug: Placebos healing phase | Arm Label: Active phase; Type: ACTIVE_COMPARATOR; Interventions: Procedure: Scaling and root planing, Drug: Metronidazole active phase, Drug: Amoxicillin active phase, Drug: Placebos healing phase | Arm Label: Healing phase; Type: ACTIVE_COMPARATOR; Interventions: Procedure: Scaling and root planing, Drug: Metronidazole healing phase, Drug: Amoxicillin healing phase, Drug: Placebos active phase | Intervention Type: PROCEDURE; Name: Scaling and root planing; Assigned to Arm(s): Active phase, Control, Healing phase | Intervention Type: DRUG; Name: Metronidazole active phase; Assigned to Arm(s): Active phase | Intervention Type: DRUG; Name: Metronidazole healing phase; Assigned to Arm(s): Healing phase | Intervention Type: DRUG; Name: Amoxicillin active phase; Assigned to Arm(s): Active phase | Intervention Type: DRUG; Name: Amoxicillin healing phase; Assigned to Arm(s): Healing phase | Intervention Type: DRUG; Name: Placebos active phase; Assigned to Arm(s): Control, Healing phase | Intervention Type: DRUG; Name: Placebos healing phase; Assigned to Arm(s): Active phase, Control
C: Arm Label: clarithromycin group; Type: ACTIVE_COMPARATOR; Interventions: Drug: Clarithromycin, Other: One-stage full-mouth ultrasonic debridement (FMUD) | Arm Label: placebo group; Type: PLACEBO_COMPARATOR; Interventions: Drug: Placebo, Other: One-stage full-mouth ultrasonic debridement (FMUD) | Intervention Type: DRUG; Name: Clarithromycin; Assigned to Arm(s): clarithromycin group | Intervention Type: DRUG; Name: Placebo; Assigned to Arm(s): placebo group | Intervention Type: OTHER; Name: One-stage full-mouth ultrasonic debridement (FMUD); Assigned to Arm(s): clarithromycin group, placebo group
D: Arm Label: Moxifloxacin; Type: EXPERIMENTAL; Interventions: Drug: moxifloxacin | Arm Label: Ciprofloxacin plus metronidazole; Type: ACTIVE_COMPARATOR; Interventions: Drug: Ciprofloxacin plus metronidazole | Intervention Type: DRUG; Name: moxifloxacin; Assigned to Arm(s): Moxifloxacin | Intervention Type: DRUG; Name: Ciprofloxacin plus metronidazole; Assigned to Arm(s): Ciprofloxacin plus metronidazole

Answer: B