Please assess the completion status of the following clinical trial:

Trial Title: Comparison of Straumann BoneCeramic vs. Allograft Bone in Extraction Sockets

Study Design Characteristics:
- Allocation: RANDOMIZED
- Intervention Model: PARALLEL
- Observational Model: None
- Primary Purpose: TREATMENT
- Time Perspective: None
- Masking: NONE
- Phase: PHASE4
- Number of Arms: 2.0

Eligibility Criteria:
Inclusion Criteria:~* Subjects must have voluntarily signed the informed consent form~* Subjects must be between the ages of 18 and 80~* Subjects must need a single tooth extraction in ADA sites 3-6 and 11-14 without septal bone in the maxilla and in ADA sites 19-30 without septal bone in the mandible and would benefit from prosthetic reconstruction with a dental implant~* Subjects must be committed to the study and the required follow-up visits~* Subjects must be in good general health as assessed by the Investigator~Exclusion Criteria:~* Presence of conditions requiring chronic routine prophylactic use of antibiotics~* Pregnancy~* Medical conditions requiring prolonged use of steroids~* History of leukocyte dysfunction and deficiencies~* History of bleeding disorders~* History of neoplastic disease requiring the use of chemotherapy~* History of radiation therapy to the head and neck~* Subjects with a history of renal failure~* Subjects with severe or uncontrolled metabolic bone disorders~* Uncontrolled endocrine disorders~* Subjects who knowingly have HIV or hepatitis~* Physical handicaps that would interfere with the ability to perform adequate oral hygiene~* Subjects who have undergone administration of any investigational drug or device within 30 days of enrollment in the study~* Alcoholism or drug abuse~* Subjects who are heavy smokers (\>10 cigarettes per day or cigar equivalents) or chew tobacco~* Conditions or circumstances, in the opinion of the Investigator, which would prevent completion of study participation or interfere with analysis of study results, such as history of non-compliance or unreliability~* Local inflammation including untreated periodontitis~* Mucosal diseases such as erosive lichen planus~* History of local radiation therapy~* Presence of oral lesions (such as ulcerations or malignancy)~* Bone defects that exclude implant restoration~* Subjects who have a full mouth plaque level \>30% at the baseline visit~* Severe bruxing or clenching habits~* Persistent intra-oral infection~* Subjects presenting with an acute abscess in the tooth to be extracted or in the adjacent teeth to the extraction site (sites with presence of asymptomatic chronic lesions are eligible)~* Subjects with inadequate oral hygiene or unmotivated for adequate home care~* At the time of tooth extraction, if any bony wall is severely damaged or completely lost (i.e., anything other than a four wall extraction socket)

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

Study Arms:
- Straumann BoneCeramic (Type: ACTIVE_COMPARATOR): In the test group, the subjects will receive the Bone Graft Material Straumann BoneCeramic in combination with a collagen membrane for preservation of the alveolar ridge after tooth extraction.
- Freeze Dried Allograft Bone (Type: ACTIVE_COMPARATOR): In the control group, the subjects will receive Bone Graft Material Freeze Dried Allograft Bone in combination with a collagen membrane for preservation of the alveolar ridge after tooth extraction.

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

Answer: outcome: terminate
termination_type: enrollment issues