Influence of Neck Design on Peri-implant Hard and Soft Tissues

Bone Resorption Clinical Trial

Official title:

Influence of Neck Design on Peri-implant Hard and Soft Tissues

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT05944419
• Other study ID #: CIR-ECL-2016-05
• Status: Completed
• Phase: N/A
• Start date: June 15, 2016
• Est. completion date: September 15, 2023

Study information

• Verified date: December 2023
• Source: Universitat Internacional de Catalunya
• Contact: n/a
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

The goal of this clinical trial is to test two different implant neck designs in 36 patients. The main question[s] it aims to answer are:

• do triangular neck designed implants placed immediately after dental extraction have the same influence on peri-implant hard and soft tissues than regular neck designed implants at one year?

• do triangular neck designed implants placed immediately after dental extraction have the same influence on peri-implant hard and soft tissues than regular neck designed implants at three years?

Participants that present an unrepairable tooth on the anterior upper maxilla will be asked to take a CBCT scan in order to verify the presence of the buccal bone. Once this is verified the patients will enter in the study and the day of the surgery they will be assigned to either control or test group.

• Control group: C1 round-neck implant

• Test groups: V3 triangular-implant neck

Researchers will compare test and control groups to see if they have the same effects on hard and soft tissues at 4 months, 1 year and 3 years.

Description:

Immediate implant placement is considered to be a technique-sensitive protocol with a variety of potential risks. The interface area between the neck of the implant and the abutment is critical; it can affect the treatment outcome, particularly mar-ginal bone loss (MBL) and soft tissue behavior. Traditionally, the implant neck is circu-lar in shape; however, a new triangular neck design has recently been introduced on the market, though advanced indications of this innovative design are still lacking.

The objective of this randomized clinical trial was to compare the clinical and radiographic outcomes obtained after immediate placement of implants and temporization of two different neck geometries: a traditional round neck (RN) and an innovative neck with a triangular shape (TN).

Recruitment information / eligibility

• Status: Completed
• Enrollment: 36
• Est. completion date: September 15, 2023
• Est. primary completion date: September 15, 2023
• Accepts healthy volunteers: Accepts Healthy Volunteers
• Gender: All
• Age group: 18 Years and older

Eligibility

Inclusion Criteria:

• healthy non-smokers or light smokers (< 10 cigarettes/day)

• adults (> 18 years of age),

• need for single tooth extraction of a maxillary incisor, canine or premolar

• adequate oral hygiene

• ability to follow instructions and attend the required appointments

• presence of a length of at least 3 mm of buccal bone measuring = 0.5 mm in thickness, apical to the extraction socket

• stable and intact socket walls

Exclusion Criteria:

• patients with acute infections in the area of interest

• individuals with large occlusal discrepancies and/or occlusal overload para-functions

• smokers of more than 10 cigarettes/day

• patients with any medical condition or medication contraindicating dental implant treatment

Related Conditions & MeSH terms

• Bone Resorption
• Soft Tissue Bleeding

Intervention

Device:
• Immediate implant surgery
Placement of immediate implant and immediate provisionalization after tooth extraction

Locations

Country	Name	City	State
Spain	Universitat Internacional de Catalunya	Sant Cugat Del Vallès	Barcelona

Sponsors (1)

Lead Sponsor	Collaborator
Universitat Internacional de Catalunya

Country where clinical trial is conducted

Spain, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Buccal bone width (BBW)	buccal bone width was measured by CBCT (iCAT®, Imaging Science International, LLC, Hatfield, PA, USA) at four points: at the implant neck, and at 1 mm, 2 mm and 3 mm above the implant neck.	4 months
Primary	Marginal bone loss (MBL)	marginal bone loss was measured on mesial and distal aspects of the implant using intraoral standardized periapical radiographs with the parallel technique. Measurements were performed using K-Pacs Work-station (Image Information Systems, Ltd.). The distance from the implant shoulder to the first bone-implant contact was measured at the mesial and distal sites.	4 months
Primary	Marginal bone loss (MBL)	marginal bone loss was measured on mesial and distal aspects of the implant using intraoral standardized periapical radiographs with the parallel technique. Measurements were performed using K-Pacs Work-station (Image Information Systems, Ltd.). The distance from the implant shoulder to the first bone-implant contact was measured at the mesial and distal sites.	1 years
Primary	Marginal bone loss (MBL)	marginal bone loss was measured on mesial and distal aspects of the implant using intraoral standardized periapical radiographs with the parallel technique. Measurements were performed using K-Pacs Work-station (Image Information Systems, Ltd.). The distance from the implant shoulder to the first bone-implant contact was measured at the mesial and distal sites.	3 years
Primary	Soft tissue thickness (STT)	the thickness of the buccal soft tissue at 3 mm and 5 mm from the gingi-val margin was measured using an endodontic file.	4 months
Primary	Soft tissue thickness (STT)	the thickness of the buccal soft tissue at 3 mm and 5 mm from the gingi-val margin was measured using an endodontic file.	1 years
Primary	Soft tissue thickness (STT)	the thickness of the buccal soft tissue at 3 mm and 5 mm from the gingi-val margin was measured using an endodontic file.	3 years
Secondary	Insertion torque (IT):	the insertion torque of the implant was measured on the day of the sur-gery with the implant motor.	day 1
Secondary	ISQ (implant stability quotient):	the ISQ was measured at implant placement using the Osstell device, which involves resonance frequency analysis (RFA) for measuring the fre-quency of vibration.	day 1
Secondary	Probing pocket depth (PPD):	probing pocket depth was measured with a Marquis Color code dental probe at 6 sites covering 360ª of the tooth: three on the buccal site and three on the palatal site of each tooth.	4 months
Secondary	Probing pocket depth (PPD):	probing pocket depth was measured with a Marquis Color code dental probe at 6 sites covering 360ª of the tooth: three on the buccal site and three on the palatal site of each tooth.	1 year
Secondary	Probing pocket depth (PPD):	probing pocket depth was measured with a Marquis Color code dental probe at 6 sites covering 360ª of the tooth: three on the buccal site and three on the palatal site of each tooth.	3 year
Secondary	Bleeding on probing (BOP):	bleeding on probing was registered at each PPD site, whether there was bleeding or not.	4 months
Secondary	Bleeding on probing (BOP):	bleeding on probing was registered at each PPD site, whether there was bleeding or not.	1 year
Secondary	Bleeding on probing (BOP):	bleeding on probing was registered at each PPD site, whether there was bleeding or not.	3 year
Secondary	Crestal width (CW)	at 3 mm and 5 mm from the gingival margin: a gauge compass was used to measure the whole width of the crestal volume, from palatal to ves-tibular wall.	4 months
Secondary	Crestal width (CW)	at 3 mm and 5 mm from the gingival margin: a gauge compass was used to measure the whole width of the crestal volume, from palatal to ves-tibular wall.	1 year
Secondary	Crestal width (CW)	at 3 mm and 5 mm from the gingival margin: a gauge compass was used to measure the whole width of the crestal volume, from palatal to ves-tibular wall.	3 year
Secondary	Pink esthetic score (PES):	this score was measured based on the Furhauser table. Maximum: 14 points / Minimum: 0 points. Higher scores mean a better outcome.	4 months
Secondary	Pink esthetic score (PES):	this score was measured based on the Furhauser table. Maximum: 14 points / Minimum: 0 points. Higher scores mean a better outcome.	1 year
Secondary	Pink esthetic score (PES):	this score was measured based on the Furhauser table. Maximum: 14 points / Minimum: 0 points. Higher scores mean a better outcome.	3 year