Please assess the completion status of the following clinical trial:

Trial Title: Effect of Probiotic Use Bifidobacterium Animalis Subsp. Lactis in Peri-implant Mucositis

Study Design Characteristics:
- Allocation: RANDOMIZED
- Intervention Model: CROSSOVER
- Observational Model: None
- Primary Purpose: PREVENTION
- Time Perspective: None
- Masking: TRIPLE
- Phase: PHASE3
- Number of Arms: 2.0

Eligibility Criteria:
Inclusion Criteria:~* completely edentulous lower or upper dental arch undergoing rehabilitation with dental implants;~* prosthetic restoration in function for at least 6 months;~* healthy individuals with no known systemic changes;~* non smokers.~Exclusion Criteria:~* patients who have received any type of local or systemic oral cavity decontamination treatment within the last 3 months or periodontal treatment within the last 6 months; uncontrolled periodontal disease;~* patients with systemic disorders capable of influencing treatment outcomes;~* smokers;~* lack of informed consent to participate in the study;~* presence of bone loss greater than 2 mm in dental implants.

- Gender: ALL
- Minimum Age: None
- Maximum Age: None
- Healthy Volunteers: t

Study Arms:
- Test Group (Type: EXPERIMENTAL): Mechanical treatment + Bifidobacterium animalis subsp. lactis
- Control Group (Type: PLACEBO_COMPARATOR): Mechanical treatment + Placebo

Based on this trial design, predict the completion outcome and termination type (if applicable).