I. Basic Information

Name: Ms. Gao

Gender: Female

Age: 60

Chief Complaint: Missing left mandibular teeth with frequent dislodgement of the removable partial denture; requesting implant‑supported restoration.

Past Medical History: Denies any systemic diseases, and no known food or drug allergies.

Present Dental History: The patient received a removable partial denture ten years ago; poor retention affecting mastication; presented to our clinic for consultation.

II. Clinical Examination

Intraoral examination was performed.

Radiographic examination was performed.

III. Diagnosis and Treatment Plan

Diagnosis: Missing left mandibular first and second premolars, and first and second molars, with insufficient alveolar ridge width.

Treatment Plan: Restoration‑driven approach using two Hanzu® implants (size 3.5 × 10 mm) for the premolar sites and two Hanzu® implants (size 4.0 × 10 mm) for the molar sites, with buccal bone augmentation.

IV. Treatment Procedure

Under local anaesthesia, after disinfection and incision, autogenous bone was harvested during osteotomy preparation. The Hanzu® implants were placed. In the left mandibular molar region, tent screws were placed on the buccal aspect of the two implant sites to create space for bone grafting, followed by graft placement and wound suturing.

Follow‑up (Prosthetic Phase – January 2025): The definitive prostheses were delivered. Multifunctional abutments were connected, and crowns were placed. Due to insufficient occlusal space, the posterior abutments were left exposed after crown placement.

V. Case Summary

The Hanzu® implant system demonstrates excellent osseointegration. The sloped shoulder design allows for more favourable bone coverage over the implant, which is conducive to bone attachment and growth, thereby ensuring long‑term implant stability and facilitating favourable stress distribution.

VI. Clinician Profile

Name: Yan Guangdi

Affiliation/Title: Attending Stomatologist

Honours and Achievements:

Attending Stomatologist (with intermediate qualifications in Prosthodontics and Dental Technology).

Member of the First Committee of the Oral Preventive Medicine Specialty Committee, Henan Preventive Medical Association.

Technical Director of Zhengzhou Yuemeijia Dental Laboratory.

Over 10 years of clinical experience in both dental practice and laboratory fabrication.

Has systematically received formal training in various implant systems from Switzerland, the United States, South Korea, etc., and obtained corresponding certificates; has been engaged in implant dentistry for more than eight years.

Specialises in endodontic therapy, aesthetic restorative dentistry, aesthetic porcelain laminate veneers, functional prosthetic rehabilitation, sinus floor elevation, immediate loading for edentulous arches, minimally invasive implant placement, and minimally invasive tooth extraction.