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Clinical Trial Details — Status: Recruiting

Administrative data

NCT number NCT02814149
Other study ID # XinL
Secondary ID
Status Recruiting
Phase N/A
First received
Last updated
Start date May 2016
Est. completion date June 2027

Study information

Verified date October 2019
Source Sun Yat-sen University
Contact Xin Liu
Phone +8615902064014
Email 838667172@163.com
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

The aim of this prospective cohort study is to compare the esthetic, clinical and patient-centered outcomes following immediate and delayed implant placement protocols.


Description:

Patients are divided into two groups: immediate and delayed implant placement. The investigators are asking subjects to take part in a research study of soft tissue and bone healing around dental implants following tooth extraction. The investigators want to compare how the gums and the bone changes shape with healing in two different scenarios.


Recruitment information / eligibility

Status Recruiting
Enrollment 40
Est. completion date June 2027
Est. primary completion date December 2026
Accepts healthy volunteers No
Gender All
Age group 18 Years to 80 Years
Eligibility Inclusion Criteria:

- At least 18 years old and able to understand an informed consent

- Adequate oral hygiene to allow for implant therapy consistent with standards of care.

- Missing a single tooth in the maxillary anterior region

- Presence of adjacent natural teeth

Exclusion Criteria:

- Poor oral hygiene

- Severe parafunctional habits, for example, bruxing and clenching

- Presence of clinically active periodontal disease as expressed by probing pocket depths=4 mm in combination with bleeding on probing.

- Conditions that might lead to a possibly lowered regenerative capacity of the bone, for example, osteoporosis and Paget's disease

- Pregnant or expecting to be pregnant

- History of drug and alcohol abuse

- History of systemic diseases that would contraindicate oral surgical treatment, for example, uncontrolled diabetes (defined as HBA1c level >7%)

- Radiotherapy in the head and neck area,

- On certain medications like bisphosphonates or steroids currently or within the past three months

- Absence of adjacent teeth

- Unwillingness to return for the follow-up examination

- Smokers (more than 20 cigarettes per day). Subjects smoking <20 cigarettes per day were requested to stop smoking before and after surgery

Study Design


Intervention

Procedure:
Type 1 implant placement
Implant is placed immediately following tooth extraction in one surgical procedure
Type 3 implant placement
Implant is placed in the site which is left to heal for 3 months following tooth extraction

Locations

Country Name City State
China Guanghua School of Stomatology Hospital of Stomatology Guangzhou Guangdong

Sponsors (1)

Lead Sponsor Collaborator
Sun Yat-sen University

Country where clinical trial is conducted

China, 

References & Publications (2)

Huynh-Ba G, Meister DJ, Hoders AB, Mealey BL, Mills MP, Oates TW, Cochran DL, Prihoda TJ, McMahan CA. Esthetic, clinical and patient-centered outcomes of immediately placed implants (Type 1) and early placed implants (Type 2): preliminary 3-month results of an ongoing randomized controlled clinical trial. Clin Oral Implants Res. 2016 Feb;27(2):241-52. doi: 10.1111/clr.12577. Epub 2015 Mar 10. — View Citation

Rieder D, Eggert J, Krafft T, Weber HP, Wichmann MG, Heckmann SM. Impact of placement and restoration timing on single-implant esthetic outcome - a randomized clinical trial. Clin Oral Implants Res. 2016 Feb;27(2):e80-6. doi: 10.1111/clr.12539. Epub 2014 Dec 12. — View Citation

Outcome

Type Measure Description Time frame Safety issue
Primary Pink and white esthetic scores (PES/WES) Baseline will be at the time of implant placement.Pink and white esthetic scores (PES/WES) will be recorded at 0.5, 1.5, 3.5, 5.5, 7.5, 10.5 years after implant placement. Up to 10 years after baseline
Primary Radiographic bone volume Radiographic bone volume be assessed at pre-operation, 0 ,1.5, 1, 1.5, 3.5, 5.5, 7.5, 10.5 years after implant placement. Up to 10 years after baseline
Secondary Implant survival Implant survival will be assessed at 0.5, 1, 1.5, 3.5, 5.5, 7.5, 10.5 years after implant placement. Up to 10 years after baseline
Secondary Probing depth Probing depth will be assessed at pre-operation, 0.5, 1, 1.5, 3.5, 5.5, 7.5, 10.5 years after implant placement. Up to 10 years after baseline
Secondary Modified plaque index Modified plaque index will be assessed at pre-operation, 0.5, 1, 1.5, 3.5, 5.5, 7.5, 10.5 years after implant placement. Up to 10 years after baseline
Secondary Modified bleeding index Modified bleeding index will be assessed at pre-operation, 0.5, 1, 1.5, 3.5, 5.5, 7.5, 10.5 years after implant placement. Up to 10 years after baseline
Secondary Buccal marginal recession Buccal marginal recession will be assessed at pre-operation, 0.5, 1, 1.5, 3.5, 5.5, 7.5, 10.5 years after implant placement. Up to 10 years after baseline
Secondary Papilla volume Papilla volume will be assessed at 0.5, 1, 1.5, 3.5, 5.5, 7.5, 10.5 years after implant placement. Up to 10 years after baseline
Secondary Width of keratinized gingiva Width of keratinized gingiva will be assessed at 0.5, 1, 1.5, 3.5, 5.5, 7.5, 10.5 years after implant placement. Up to 10 years after baseline
Secondary Visual analogue scale (VAS) A questionnaire will be recorded at pre-operation, 0.5, 1, 1.5, 3.5, 5.5, 7.5, 10.5 years after implant placement. Up to 10 years after baseline
Secondary Oral health impact profile shortened version (OHIP-I) A questionnaire will be recorded at pre-operation, 0.5, 1, 1.5, 3.5, 5.5, 7.5, 10.5 years after implant placement. Up to 10 years after baseline
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