The effectiveness of a novel osseous densification approach on implants' primary and secondary stability: a clinical trial

ISRCTN ISRCTN15797074
DOI https://doi.org/10.1186/ISRCTN15797074
Submission date
24/03/2024
Registration date
02/04/2024
Last edited
19/06/2024
Recruitment status
No longer recruiting
Overall study status
Completed
Condition category
Oral Health
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data

Plain English summary of protocol

Background and study aims
Primary stability in dental implants is crucial for successful bone integration, and factors like the surgical procedure and bone density play key roles in achieving it. The size of the hole drilled, the design of the implant, and the amount of pressure on the bone all affect how stable the implant is.
Insertion torque and the patient's bone density also impact how well the implant stabilizes. Higher insertion torque leads to better stability compared to lower values. Where the jawbone is less dense there may be less contact between the bone and the implant, which can reduce stability. Ensuring there's enough bone during implant preparation is crucial for long-term stability. Secondary stability, which develops over time as the bone remodels around the implant, is also important. A new drilling method called osseodensification increases bone density around the implant, improves primary stability, reduces implant movement during integration and allows for immediate loading in some cases. The aim of this study is to evaluate the effectiveness of osseodensification in low-density bone.

Who can participate?
Patients over the age of 18 years who require at least two dental implants in the upper jaw

What does the study involve?
In order to compare osseodensification and conventional drilling, implants were placed side by side with both techniques and assessed at three different times: at implant placement, 6 months after implant placement, and 1-year follow-up.

What are the possible benefits and risks of participating?
Osseodensification helps increase bone density and boosts the initial stability of the implant. This is important for reducing movements of the implant during integration in low-density bone. Another benefit is that it reduces the size of the holes made during drilling when the drills are taken out.

Where is the study run from?
University Institute of Health Sciences - IUCS Portugal in CESPU - Famalicão clinical unit (Portugal)

When is the study starting and how long is it expected to run for?
January 2019 to December 2023

Who is funding the study?
Infante da Camara Dental Institute (Portugal)

Who is the main contact?
Marco Infante da Câmara DDS, MsC, PhD
m_infante2@hotmail.com
marco.camara@iucs.cespu.pt

Contact information

Prof Marco Camara
Public, Scientific

Rua Correia de Sá
Porto
4150-229
Portugal

ORCiD logoORCID ID 0000-0002-9551-5407
Phone +351 (0)914112775
Email marco.camara@iucs.cespu.pt
Dr João Fontes Pereira
Principal Investigator

Rua Central de Gandra
Gandra
4585-116
Portugal

ORCiD logoORCID ID 0000-0003-2449-6293
Phone +351 (0)967694939
Email joao.pereira@iucs.cespu.pt

Study information

Study designClinical trial
Primary study designInterventional
Secondary study designRandomised controlled trial
Study setting(s)Hospital
Study typeQuality of life
Participant information sheet See study outputs table
Scientific titleThe effectiveness of osseodensification drilling versus conventional surgical technique on implant stability: a clinical trial
Study acronymOsseodensification
Study objectivesThe aim of this study is to evaluate osseodensification effectiveness in low-density bone and assess insertion torque and resonance frequency analysis at three different times:
1. On the day of implant placement (T1)
2. 6 months after implant placement (T2)
3. 1-year follow-up (T3)

Osseodensification provides less invasive surgeries with a lower pain perception and less post-operative morbidity.
Ethics approval(s)

Approved 05/02/2019, CESPU Ethics Committee (Rua Central de Gandra, Gandra, 4585-116, Portugal; +351 (0)224 157 100; sec.ce@cespu.pt), ref: 02/CE-IUCS/2019

Health condition(s) or problem(s) studiedDental implant stability in low density bone
InterventionOsseodensification and conventional drilling in dental implant surgery in type IV bone.

All patients underwent a preliminary assessment that included a careful analysis of their medical and dental histories and a detailed clinical examination. Patients were thoroughly informed, by means of oral and written explanations, about the purpose and procedures of the study, and informed consent was obtained from all participants.

In order to perform a comparison between osseodensification and subtractive conventional drilling, implants were placed side by side with both techniques to establish a comparison in resonance frequency analysis (RFA) and torque values matched for age, gender and smoking habit.

Insertion torque (IT) and resonance frequency analysis were carried out at three different times: i) surgical phase of implant placement (T1); ii) 6 months after implant placement (T2); iii) 1-year follow-up (T3).
Intervention typeProcedure/Surgery
Primary outcome measureInsertion torque was measured at T1 using a manual torque wrench (Straumann®) and the implant stability quotient (ISQ) was registered as the average of the buccal, lingual, mesial and distal readings using the Osstell® ISQ device (Osstell, W&H, Gothenburg, Sweden)
Secondary outcome measuresISQ measured using the Osstell® ISQ device at 6 months and 1 year after surgery
Overall study start date15/01/2019
Completion date16/12/2023

Eligibility

Participant type(s)Patient
Age groupAdult
Lower age limit18 Years
Upper age limit70 Years
SexBoth
Target number of participants120
Total final enrolment90
Key inclusion criteria1. At least 18 years old
2. Have healed edentulous sites on the posterior maxillae region with at least 3 months postextraction period
3. Need to receive at least two dental implants
4. Have sufficient residual bone volume for implant placement without the need for bone augmentation where the minimum ridge height and width should be ≥8 and ≥6 mm, respectively
Key exclusion criteria1. Alcoholism
2. Smoking
3. Drug abuse
4. Diabetes
5. Heart disease
6. Bleeding disorders
7. Weakened immune systems
8. Radiation exposure
9. Past or ongoing use of steroids or bisphosphonates
10. Previous bone regenerative or augmentation procedures
Date of first enrolment06/02/2019
Date of final enrolment10/03/2019

Locations

Countries of recruitment

  • Portugal

Study participating centre

University Institute of Health Sciences - IUCS
Rua Central de Gandra
Gandra
4585-116
Portugal

Sponsor information

Infante da Camara Dental Institute
Research organisation

Rua Correia de Sá 107
Porto
4150-229
Portugal

Phone +351 (0)226171045
Email geral@infantedacamaradentalinstitute.pt
Website https://www.infantedacamaradentalinstitute.pt/

Funders

Funder type

Research organisation

Infante da Camara Dental Institute

No information available

Results and Publications

Intention to publish date08/06/2024
Individual participant data (IPD) Intention to shareYes
IPD sharing plan summaryStored in non-publicly available repository
Publication and dissemination planFinalised the data collection of 278 implants in 90 patients in T1, T2 and T3, now in statistical analysis.
IPD sharing planThe datasets generated during the current study are stored in a non-publicly available repository (https://repositorio.cespu.pt/)

Study outputs

Output type Details Date created Date added Peer reviewed? Patient-facing?
Results article 15/05/2024 19/06/2024 Yes No

Editorial Notes

19/06/2024: Publication reference added.
28/03/2024: Study's existence confirmed by the CESPU Ethics Committee.