Clinical trial NCT05436158: The Use of a New Safe Angle Position for Implant Placement in the Anterior Region.
Official title: The Use of a New Safe Angle Position for Implant Placement in the Anterior Region: A Cross-sectional Study
Study type: OBSERVATIONAL
Overall status: UNKNOWN
Conditions: Immediate Implant Placement
Esthetic Zone
Anterior Maxilla
Safe Angle Position
Keywords: Immediate dental implants
anterior maxilla
safe angle position
Lead sponsor: Cairo University
Sponsor class: OTHER
First posted: 2022-06-28
Enrollment: 100
Sex: ALL
Minimum age (years): 21
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: yes
Observational model: OTHER
Time perspective: CROSS_SECTIONAL
Sampling method: NON_PROBABILITY_SAMPLE
Study population: Patients with immediate implants in the anterior region

Brief summary: There is an angle between the intersection of the incisal long axis perpendicular to the palate or the occlusal plane, and the long axis of the root. When this relation is shifted more palatal, where the incisal plane line will be at the cingulum position or slightly palatal to it, it is named the safe angle position. The more palatal relocation to the cingulum is performed according to the availability of palatal bone, the occlusion with the opposing dentition, the type of the restoration (screw vs cemented).

The possibility of having a specific safe angle to place implants opens new interesting perspectives for immediate placement of dental implants.

The aim of the present study was to demonstrate how immediate implants in the safe angle position can be predictably achieve proper implant positioning, better esthetics and emergence profile as well as less stresses on the implant.

Detailed description: Immediate implants are implants inserted immediately after surgical extraction of the teeth to be replaced. Creation of an anatomically correct emergence profile is one of the most important aspects in providing an esthetically pleasing implant-supported restoration. Dentists understand the risks involved when restored prostheses are subjected to non-axial loading. It has always been recommended to direct occlusal loads as close to the long axis of the fixture as possible. However, it is known that the loading on angled abutments is mostly off-axis, which raises the concern of how angled abutments generally perform with such an unfavourable loading regimen.

There is an angle between the intersection of the incisal long axis perpendicular to the palate or the occlusal plane, and the long axis of the root. When this relation is shifted more palatal, where the incisal plane line will be at the cingulum position or slightly palatal to it, it is named the safe angle position. The more palatal relocation to the cingulum is performed according to the availability of palatal bone, the occlusion with the opposing dentition, the type of the restoration (screw vs cemented).

The possibility of having a specific safe angle to place implants opens new interesting perspectives for immediate placement of dental implants.

The aim of the present study was to demonstrate how immediate implants in the safe angle position can be predictably achieve proper implant positioning, better esthetics and emergence profile as well as less stresses on the implant.

Eligibility criteria: Inclusion Criteria:

1. Patients with immediate implants in the anterior region
2. Patient with preoperative and postoperative CBCT
3. Provide informed consent.

Exclusion Criteria:

1. patients without a preoperative CBCT.
2. 2- patients without an informed consent.

Primary outcomes:
measure: presence of the implant in the safe angle
timeFrame: 6 months
measure: use of angled or straight abutment
timeFrame: 6 months
Secondary outcomes:
measure: Pink Esthetic Score
timeFrame: 6 months
Other outcomes:
Locations:
city: Cairo
country: Egypt
facility: International Dental Continuing Education
state: Maadi
city: Cairo
country: Egypt
facility: Faculty of Dentistry, Cairo University
state: Manial
Study officials:
affiliation: Professor of Oral Medicine & Periodontology
name: Noha A Ghallab, PhD
role: STUDY_CHAIR
affiliation: MIU
name: Ahmed I Abou- El-Fettouh, MSc
role: PRINCIPAL_INVESTIGATOR
affiliation: MIU
name: Abdelrahman Zohny, BDs
role: PRINCIPAL_INVESTIGATOR
affiliation: MIU
name: Nael M Adel, BDs
role: PRINCIPAL_INVESTIGATOR
affiliation: MIU
name: Mariam S Abdelmalak, BDs
role: PRINCIPAL_INVESTIGATOR
affiliation: Lecturer of Oral Medicine & Periodontology, Cairo University
name: Nesma M Shemais, PhD
role: PRINCIPAL_INVESTIGATOR
References: