Please assess the completion status of the following clinical trial:

Trial Title: Effect of Dentifrice Usage Regime on Delivery and Efficacy of Fluoride

Study Design Characteristics:
- Allocation: RANDOMIZED
- Intervention Model: CROSSOVER
- Observational Model: None
- Primary Purpose: TREATMENT
- Time Perspective: None
- Masking: SINGLE
- Phase: PHASE4
- Number of Arms: 5.0

Eligibility Criteria:
Inclusion Criteria:~General and Dental Health~* Good general and dental health with (in the opinion of the investigator) no clinically significant and relevant abnormalities of medical history or oral examination~* Have no current active caries or periodontal disease that may compromise the study or the health of the subjects~* Residency: Currently living in the Indianapolis, Indiana area~Dentures:~* Currently wearing a removable mandibular partial denture with sufficient room in the posterior buccal flange area to accommodate two enamel specimens (required dimensions 12 mm x 7 mm)~* Willing to have their denture modified to accommodate enamel test specimens and willing and capable of wearing their removable mandibular partial dentures 24 hours per day during the experimental periods~* All restorations in a good state of repair~* Salivary Flow: Have a salivary flow rate in the range of normal values (unstimulated whole saliva flow rate ≥ 0.2 mL/minute; gum base stimulated whole saliva flow rate ≥ 0.8 mL/minute)~Exclusion Criteria:~* Antibiotics: Use of antibiotics two weeks prior to a treatment visit or anticipated use during the study treatment periods~* Study Scale Use: Subjects unable to measure product weights accurately using the assigned study scale as determined by the study staff (as demonstrated on or before Visit 4)~* A member of the site study staff who is directly working on the project or living in that staff's household~* Any employee of any toothpaste manufacturer or their spouse or family member

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

Study Arms:
- Experimental dentifrice 0.5g, 45 seconds brushing group (Type: EXPERIMENTAL): Participants brush twice a daily for 45 seconds with experimental dentifrice.
- Experimental dentifrice 1.5g, 45 seconds brushing group (Type: EXPERIMENTAL): Participants brush twice a daily for 45 seconds with experimental dentifrice.
- Experimental dentifrice 0.5g, 2 minutes brushing group (Type: EXPERIMENTAL): Participants brush twice a daily for 2 minutes with experimental dentifrice.
- Experimental dentifrice 1.5g, 2 minutes brushing group (Type: EXPERIMENTAL): Participants brush twice a daily for 2 minutes with experimental dentifrice.
- Contol group (Type: ACTIVE_COMPARATOR): Participants brush twice a daily for 2 minutes with controll dentifrice.

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