Please assess the completion status of the following clinical trial:

Trial Title: Enamel Remineralization Potential of Dentifrices in Situ

Study Design Characteristics:
- Allocation: RANDOMIZED
- Intervention Model: CROSSOVER
- Observational Model: None
- Primary Purpose: PREVENTION
- Time Perspective: None
- Masking: DOUBLE
- Phase: PHASE4
- Number of Arms: 4.0

Eligibility Criteria:
Inclusion Criteria:~* Good general health with (in the opinion of the investigator) no clinically significant and relevant abnormalities of medical or oral health.~* No current active caries or periodontal disease that may compromise the study or health of the subject.~* All restorations in a good state of repair~* Currently wearing a removable mandibular partial denture with sufficient room in the posterior buccal flange area to accomodate two enamel specimens required dimensions 12 x 7 mm.~* Willing to have their denture modified to accomodate enamel test specimens~* Willing and capable of wearing removable mandibular partial dentures 24 hours per day during the treatment periods.~* Salivary flow rate in the range of normal values (unstimulated whole saliva flow rate greater than or equal to 0.2 mL/ minute; gum base stimulated whole saliva flow rate greater than or equal to 0.8 mL/minute.~Exclusion Criteria:~* Individuals currently taking antibiotics, or who have taken antibiotics within 30 days prior to the first treatment visit.~* Current active caries or periodontal disease that may compromise the study or health of the subject.

- Gender: ALL
- Minimum Age: 18 Years
- Maximum Age: 80 Years
- Healthy Volunteers: t

Study Arms:
- Fluoride Toothpaste 1 (Type: EXPERIMENTAL): Fluoride toothpaste containing sodium fluoride (NaF)
- Fluoride Toothpaste 2 (Type: EXPERIMENTAL): Fluoride toothpaste containing stannous fluoride (SnF) and NaF.
- Fluoride Toothpaste 3 (Type: EXPERIMENTAL): Fluoride toothpaste containing sodium monofluorophosphate (NaMFP) and NaF.
- Reference Dentifrice (Type: ACTIVE_COMPARATOR): Low fluoride toothpaste containing NaF

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