Please assess the completion status of the following clinical trial:

Trial Title: Effectiveness of Nano-silver Fluoride and Silver Diamine Fluoride for Arresting Early Childhood Caries

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

Eligibility Criteria:
Inclusion Criteria:~* Children younger than 4 years old.~* The presence of at least one active carious lesion on a primary tooth, with scores 3 and higher (according to the International Detection and Assessment System- ICDAS II)~* Completion of an informed consent to participate in the study.~Exclusion Criteria:~* Children reporting spontaneous or elicited pain from caries or showing any signs of pulpal infection, swelling and/or abscess, obvious discoloration of the tooth and premature hypermobility.~  * Parental refusal to participate in the study.~ * Allergy or sensitivity to silver or any of the materials included in the study.

- Gender: ALL
- Minimum Age: 2 Years
- Maximum Age: 4 Years
- Healthy Volunteers: f

Study Arms:
- group 1 (Type: EXPERIMENTAL): None
- group 2 (Type: ACTIVE_COMPARATOR): None

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