Condition category
Oral Health
Date applied
Date assigned
Last edited
Retrospectively registered
Overall trial status
Recruitment status
No longer recruiting
Publication status

Plain English Summary

Background and study aims
Dental implants are used to support false teeth. It involves a procedure that places a screw into the jawbone. However, bone loss around dental implants is inevitable process and the maximum amount of bone loss occurs first year after dental implant placement. This affects the function and aesthetic (looks) therefore, replacement or bone re-growth is very important to improve and increase the success rate of dental implant. Ultrasound therapy could be used to regenerate and facilitate bone growth. The aim of this study is to examine the implant of ultrasound therapy on bone loss after a dental implant procedure.

Who can participate?
Adults aged 20-40 years old who need a simple standard tooth implant.

What does the study involve?
Participants are randomly allocated to one of two groups. All participants undergo the first part of the dental implant procedure. Those in the first group receive the ultrasound therapy twice a week for 20 minutes two weeks after their dental implant and this is continued for two weeks. Those in the second group receive the standard level of care after the procedure. At two months, impressions of the teeth and the installation of the crown (a cap for a tooth) is placed. The same therapy is repeated two weeks after the tooth is placed for another 10 weeks for those in the first group. Participants are followed up to examine their bone loss three and six months after the procedures.

What are the possible benefits and risks of participating?
Participants may benefit from an increased success rate of their dental implant procedure and decreased bone loss. There are no risks or harm in any means to the patients as the used ultrasound generates minimum heat and it might cause only a very mild or minimum discomfort which negligible by the patients. Regarding the dental implant, it has been used for quite some time now with a very good success rate and it has no complications as the normal consequences of dental implant placement as tolerable pain and mild swelling if it occurs.

Where is the study run from?
University Dental Hospital Sharjah (UAE)

When is the study starting and how long is it expected to run for?
September 2014 to July 2015

Who is funding the study?
College of Medicine and Health Sciences, United Arab Emirates University (UAE)

Who is the main contact?
Dr Elaf Abdulhameed (Scientific)

Trial website

Contact information



Primary contact

Dr Elaf Abdulhameed


Contact details

College of Dental Medicine
University of Sharjah
P.O.Box 27272
United Arab Emirates
+971 507 108284

Additional identifiers

EudraCT number number

Protocol/serial number


Study information

Scientific title

The effect of ultrasound therapy on osseointegration and marginal bone loss around implant-supported prosthesis


Study hypothesis

Null hypothesis:
There is no association between the quality of osseointegration and the marginal bone loss when using therapeutic ultrasound during alveolar bone healing period in dental implantology.

Ethics approval

1. University Research and Humans Ethics Committee at University of Sharjah, 05/01/2015, ref: ERC / 05/01/15/01
2. USM Human Ethics, ref: JEPeM Code USM/JEPeM/14120529

Study design

Interventional randomised controlled clinical trial

Primary study design


Secondary study design

Randomised controlled trial

Trial setting


Trial type


Patient information sheet

See additional files


Dental implant treatment (Osseointegration)


The aims and objectives of this study are to evaluate the effect of ultrasound therapy on osseointegration using clinical assessments, measurements of RFA values and radiological assessments using linear measurement of marginal bone loss around the dental implant supported prostheses using CBCT. The selected age groups were between 20 and 40 years old. All patients were recruited following specific criteria of inclusion and exclusion.

Patients of this study randomly allocated to one of two groups either the Ultrasound group or the Control group. Each participant receive one dental implant to replace single missing maxillary first or second premolar teeth.

In the first trial group (ultrasound), the ultrasound therapy is applied twice a week for 20 minutes that commences two weeks after stage I implant surgery and continued for 10 weeks. At two months, uncovery and placement of gingival former for 10 days is carried on for all patients in both groups (ultrasound and control) then the impression taking was done for all patients and installation of screw-retained porcelain to fused crown are performed two weeks later after the impression was taken.

The same ultrasound therapy protocol is repeated two weeks after the crown installation for another 10 weeks.

In the control group, participants are not subjected to application of ultrasound therapy. Clinical data collections composed of measurements of Resonance Frequency Analysis (RFA) values using osstell ISQ device and linear measurements of different variables using CBCT images taken immediately after the placement of the implant and during follow-up clinical examinations at three months and six months postoperatively.

Intervention type



Drug names

Primary outcome measure

1. Marginal bone lose at 3 different views (Coronal,Sagittal and Axial) is measured using the CBCT scan at at baseline (day of implant placement), 3 months and 6 months
2. The highest increase bone found in buccal bone plate at coronal view

Secondary outcome measures

1. Gingival overgrowth is measured using clinical assessment at baseline, day 3 and 6 months
2. Peri-coronal bone around dental implant is measured using CBCT scan at baseline, day 3 and 6 months
3. Resonance Frequency Analysis (RFA) is measured using Osstell device at nase;ome, day 3 and 6 months

Overall trial start date


Overall trial end date


Reason abandoned (if study stopped)


Participant inclusion criteria

1. Patients’ age between 20-40 years
2. No systemic diseases or medical contraindications to oral surgical procedure
3. Well motivated patients with good oral hygiene
4. Presence of maxillary single missing first or second premolar teeth with adequate available bone height and width
5. Presence of intact adjacent teeth
6. The patients needed simple standard implant surgery without the need for soft or hard tissue grafts

Participant type

Healthy volunteer

Age group




Target number of participants


Total final enrolment


Participant exclusion criteria

1. Patients younger than 20 years and older than 40 years
2. Patients with systemic diseases or syndromes that might affect bone metabolism or patients with para-functional habits
3. Patients with active periodontal diseases and bad oral hygiene
4. Smokers
5. Inadequate available bone height and width or hard and soft tissue grafts needed
6. Pregnancy
7. Implant surgery needed to replace previous failed implant

Recruitment start date


Recruitment end date



Countries of recruitment

United Arab Emirates

Trial participating centre

University Dental Hospital Sharjah
P.O.Box 27272
United Arab Emirates

Sponsor information


University Dental Hospital Sharjah

Sponsor details

Sharjah University Road
P.O.Box 27272
United Arab Emirates
+971 507 108284

Sponsor type

Hospital/treatment centre



Funder type


Funder name

College of Medicine and Health Sciences, United Arab Emirates University

Alternative name(s)


Funding Body Type

government organisation

Funding Body Subtype

Local government


United Arab Emirates

Results and Publications

Publication and dissemination plan

Panned publication in a high-impact peer reviewed journal. Additional documentation are available upon request.

IPD sharing statement:
The datasets generated during and/or analysed during the current study are/will be available upon request from Dr. Elaf Akram Abdulhameed (Tel: 00971507108284) at

Intention to publish date


Participant level data

Available on request

Basic results (scientific)

Publication list

2018 results in (added 23/11/2020)

Publication citations

Additional files

Editorial Notes

23/11/2020: The following changes were made to the trial record: 1. Publication reference added. 2. The total final enrolment was added. 21/02/2018: The participant information sheet has been uploaded.