Please assess the completion status of the following clinical trial:

Trial Title: Influence of Implants and Locators for Improved Retention

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

Eligibility Criteria:
Inclusion Criteria:~* age 45-80 years (male or female)~* sufficient full dentures in the mandible~* must be able to clean their teeth on their own~* edentulous mandible with interforaminal adequate bone for insertion of implants~* implantation sites free of infections and root fragments~* no need for treatment of the maxillary teeth~* Written Informed Consent~Exclusion Criteria:~* systemic diseases~* mental disability that may affect the participant's ability to properly follow study instructions~* oral mucosal diseases~* long-term medication with steroids, bisphosphonates~* known allergic reactions to dental materials~* malignant tumor in the head and neck area~* requirement of any concurrent radiotherapy or chemotherapy or any radiotherapy or chemotherapy within the last 10 years pregnancy or breastfeeding at study entry

- Gender: ALL
- Minimum Age: 45 Years
- Maximum Age: 80 Years
- Healthy Volunteers: f

Study Arms:
- A Locator with retention elements (Type: EXPERIMENTAL): GC Pilier Locator abutment with retention elements:~For patients in the experimental group (arm A) the connection of the full dentures to the implants will be achieved by fitting the dentures with GC Pilier Locator abutments with retention elements.
- B Locator without retention elements (Type: ACTIVE_COMPARATOR): GC Pilier Locator abutment without retention elements:~For patients with the active comparator (arm B) the full dentures will get Pilier Locator abutments without retention elements and thus no connection to the implants.

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