Accuracy and Primary Stability of Straight and Tapered Implants in Immediate Implant Placement Using Dynamic Navigation

Shanghai Jiao Tong University

Status: Completed

Conditions: Tooth Diseases

Treatments: Procedure: Straight Implants; Procedure: Tapered Implants

Study type: Interventional

Funder types: Other

Identifiers

NCT04853121

SH9H-2020-T410-2

Details and patient eligibility

About

Prosthetic-driven immediate implant placement for optimal aesthetic restoration has been increasing in demand during the last decades but requires higher accuracy. Dynamic navigation has been a reported better implant positioning. There are two main choices of implant macrogeometry: straight and tapered implants. One feature of implant design that may influence implants' accuracy is the taper of the implant body. However, their exact role is still needed to be investigated further. Besides, implant macrogeometry may influence primary stability, which is a prerequisite in achieving osseointegration. Therefore, we designed a randomized controlled clinical trial study to verify the clinical efficacy of the implant macrogeometry by comparing straight implants with tapered implants in immediate implant placement using dynamic navigation.

Enrollment: 20 patients

Sex: All

Ages: 18+ years old

Volunteers: No Healthy Volunteers

Inclusion criteria

1. ≥18 years old and in good health;
2. The maxillary incisor that cannot be retained due to non-periodontitis;
3. The buccal bone plate is complete;
4. No acute infection;
5. The extraction socket have at least 3-5 mm apical bone.

Exclusion criteria

1. General contraindications of oral implant surgery (such as immunodeficiency, long-term use of corticosteroids);
2. Treatments or diseases that may affect bone tissue metabolism (for example, taking bisphosphonates or receiving local radiotherapy);
3. Periodontitis history or uncontrolled periodontitis. Bleeding of probing (BOP) positive site ≥ 10%, or probing depth (PD) ≥ 4mm;
4. Heavy smokers or previous heavy smoking history (quit smoking time <5 years or> 20 cigarettes per day);
5. Refuse to participate in this trial.

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: Double Blind

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20 participants in 2 patient groups, including a placebo group

tapered implant

Active Comparator group

Treatment:

Procedure: Tapered Implants

straight implant

Placebo Comparator group

Treatment:

Procedure: Straight Implants