Please assess the completion status of the following clinical trial:

Trial Title: Caries Transmission Prevention in Alaska Native Infants

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

Eligibility Criteria:
* primiparous or multiparous pregnant Alaska Native mothers of all ages~* in the last month of pregnancy~* reside in the health service delivery area of the native health corporation, in one of the communities with the highest birth counts from 2002~* eligible for obstetric care from the health corporation~* plan to give birth to their infant in a specified city of Alaska

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

Study Arms:
- Intervention group (Type: EXPERIMENTAL): Subjects received chlorhexidine mouthwash and xylitol gum , in addition to the usual care specified under the control group
- Control (Type: PLACEBO_COMPARATOR): Subjects received enhanced dental care, health information, toothbrushes and toothpaste. They also received placebo gum and placebo mouth rinse

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