Please assess the completion status of the following clinical trial:

Trial Title: Miniscrews as Anchorage Device for Orthodontic Treatment

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

Eligibility Criteria:
Inclusion Criteria:~* Adolescents in need of orthodontic treatment with fixed appliance including extractions of the maxillary first premolars~* Need for Anchorage reinforcement~* Permanent dentition including the maxillary second molars in occlusion (DS4M2 according to Björk)~* Regular dental care in Sweden since the age of three.~Exclusion Criteria:~* Experience of previous orthodontic treatment~* Need for orthognathic surgery~* Need for maximum anchorage.

- Gender: ALL
- Minimum Age: 11 Years
- Maximum Age: 20 Years
- Healthy Volunteers: t

Study Arms:
- Group A - Miniscrews (Type: EXPERIMENTAL): Topical anesthesia (buccal and palatal) followed by local anesthesia (buccal and palatal). Extraction of the maxillary first premolars.~Fixed appliance in the maxilla or maxilla and mandible.~Anchorage reinforcement with miniscrews (Spider Screw K1 short neck). Miniscrews are placed buccally between the maxillary second premolar and the first molar after topical anesthesia (buccal) and injection (buccal). Miniscrews are placed when space closure starts. Space closure is performed as en masse retraction. Miniscrew are immediately loaded with 150g Nickel Titanium coil springs.
- Group B - Molarblock (Type: ACTIVE_COMPARATOR): Topical anesthesia (buccal and palatal) followed by local anesthesia (buccal and palatal. Extraction of the maxillary first premolars.~Fixed appliance in the maxilla or maxilla and mandible.~Anchorage reinforcement with molarblocks - a Stainless steel ligature connecting the maxillary second premolar with the maxillary first and second molar. Molarblocks are installed from the beginning of leveling and alignment. Space closure is performed as en masse retraction with type one active tie-backs.

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