Implant failure rates in patients with a history of periodontal disease under different incision designs: a retrospective cohort study comparin intrasulcular incision with modified H-shaped incision

Status

Active, not recruiting

Phases

Early Phase 1

Study type

Observational

Source

ChiCTR

Registry ID

ChiCTR2300073260

Enrollment

Unknown

Registered

2023-07-05

Start date

2022-01-01

Completion date

Unknown

Last updated

2023-07-10

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Post-implant infection

Interventions

Group of Periodontal history + intrasulcular incisions:In patients with a history of periodontal disease, an intrasulcular incision is used to open the mucoperiosteal flap during the first stage of im

Group of Periodontal history+modified H-shaped incision incisions:In patients with a history of periodontal disease, a modified H-shaped incision is used to open the mucoperiosteal flap during the fir

Group of healthy periodontal condition + intrasulcular incisions:In patients without a history of periodontal disease, an intrasulcular incision is used to open the mucoperiosteal flap during the firs

Group of healthy periodontal condition+modified H-shaped incision incisions:In patients without a history of periodontal disease, a modified H-shaped incision is used to open the mucoperiosteal flap d

Eligibility

Sex/Gender

All

Age

18 Years to 70 Years

Inclusion criteria

Inclusion criteria: 1. Bilateral adjacent teeth exist, and the gap between missing teeth is greater than 7mm 2. The keratinizing gum has sufficient width (greater than 3mm) 3. Postoperative follow-up for at least one year

Exclusion criteria

Exclusion criteria: 1. Systemic diseases (uncontrollable diabetes, immune system diseases, history of radiotherapy and chemotherapy, etc.) 2. Smoking greater than 10/day and abuse of drugs and alcohol 2. Oral dysfunction such as night molars and clenched teeth 3. Poor oral hygiene (plaque index and full mouth bleeding score>25%) 4. Immediate implantation or immediate repair (less than three months after tooth extraction) 5. Patients undergoing bone augmentation surgery (including autologous bone grafting or allogeneic bone grafting) 6. Patients who have been replanted at the site of infection after implantation. 7. Incomplete medical records.

Design outcomes

Primary

Measure	Time frame
Implant failure rate;	—

Secondary

Measure	Time frame
Peri-implant bone resorption at 6 months post-loading;Peri-implant bone resorption at 12 months post-loading;Bone resorption in adjacent teeth 6 months after restoration;Bone resorption in adjacent teeth 12 months after restoration;	—

Countries

China

Contacts

Public ContactYuKe

Affiliated Stomatological Hospital of Southwest Medical University

65968999@qq.com+86 189 8913 7259

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Feb 4, 2026