I. Basic Information

Name: Mr. Liu

Gender: Male

Age: 60

Chief Complaint: A removable partial denture was placed at another clinic 10 years ago; for the past six months, the abutment teeth have become mobile, and the removable prosthesis can no longer be worn.

Past Medical History: Not reported.

Present Medical History: Essential hypertension.

II. Clinical Examination

Specialised Examination: Residual roots were noted at sites #32, #42, and #43; tooth #44 exhibited Grade I mobility with percussion pain (+). Alveolar ridge width was acceptable, and no significant gingival abnormalities were observed.

Auxiliary Examination: Radiographic examination was performed.

III. Diagnosis and Treatment Plan

Diagnosis:

#44: Chronic apical periodontitis;

#32, #42, #43: Residual roots;

#31, #41: Missing teeth.

Treatment Plan: Digital intraoral scanning and impression taking; fabrication of a removable partial denture for sites #32–#44 as a provisional transitional prosthesis; extraction of teeth #32, #42, #43, and #44; simultaneous implant placement.

IV. Treatment Procedure

Surgical Procedure (December 2024): Tooth #44 was extracted. One Hanzu® implant (size 3.5 × 10 mm) was placed at site #32, one Hanzu® implant (3.5 × 10 mm) at site #31, one Hanzu® implant (3.5 × 10 mm) at site #42, and one Hanzu® implant (4.0 × 11 mm) at site #44. Bone graft material mixed with CGF (concentrated growth factors) was placed in the region from #32 to #44.

Regular Follow‑up:

Day 1 post‑operative follow‑up: The patient reported satisfactory recovery with no pain or swelling.

Sutures were removed at 1 month post‑operatively.

Radiographic follow‑up was performed at 1 month.

The second‑stage restorative phase was initiated at 4 months post‑operatively.

Post‑operative Prosthesis Delivery: Definitive restorations were delivered.

V. Case Summary

This was a case of immediate implant placement following extraction of residual roots. The Hanzu® implant system demonstrated strong primary stability.

VI. Clinician Profile

Name: Shu Kai

Affiliation/Title: Shushi Dental Clinic