Please assess the completion status of the following clinical trial:

Trial Title: Helical CT, PET/CT, MRI, and CBCT Alone or in Combination in Predicting Jaw Invasion in Patients With Oral Cancer

Study Design Characteristics:
- Allocation: None
- Intervention Model: None
- Observational Model: COHORT
- Primary Purpose: None
- Time Perspective: PROSPECTIVE
- Masking: None
- Phase: None
- Number of Arms: None

Eligibility Criteria:
Inclusion Criteria:~* Diagnosis of squamous cell carcinoma of the oral cavity~* Able to read and sign and informed consent~Exclusion Criteria:~* Prior mandibular surgery~* Primary intraosseous carcinoma~* Prior history of radiation to the mandible~* Obvious finding of clinical invasion of the mandible

- Gender: ALL
- Minimum Age: 18 Years
- Maximum Age: 90 Years
- Healthy Volunteers: f

Study Arms:
- Diagnostic (helical CT, PET/CT, MRI, CBCT) (Type: None): Patients undergo helical (Computed Tomography) CT,(Positron Emission Tomography and Computed Tomography) PET/CT, (Magnetic Resonance Imaging) MRI, and (Cone-Beam Computed Tomography) CBCT scans. Patients also undergo therapeutic conventional surgical resection of tumor.

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