Please assess the completion status of the following clinical trial:

Trial Title: Effect of Calcium Glycerophosphate (CaGP) - Fluoride Dentifrice on Dental Biofilm pH

Study Design Characteristics:
- Allocation: RANDOMIZED
- Intervention Model: CROSSOVER
- Observational Model: None
- Primary Purpose: PREVENTION
- Time Perspective: None
- Masking: TRIPLE
- Phase: PHASE1
- Number of Arms: 1.0

Eligibility Criteria:
Inclusion Criteria:~* to live in a non-fluoridated area~* to have at least 20 natural teeth~* signed a consent form agreeing to carefully follow the research instructions~Exclusion Criteria:~* presence of active caries lesions~* periodontal disease~* use of antibiotics/medication.

- Gender: ALL
- Minimum Age: 19 Years
- Maximum Age: 30 Years
- Healthy Volunteers: t

Study Arms:
- dentifrice intervention (Type: EXPERIMENTAL): 4 types of dentifrices were used in 4 different periods in a crossover study design.

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