An interventional study of Densah burs (Osseodensification Technique) in Osseodensification, Bone Expansion and Alveolar Bone Loss, sponsored by University of Science and Technology, Yemen. Active, not recruiting at 1 site in Yemen. Open to participants aged 18 Years to 80 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2026-08-11.
Sponsored by University of Science and Technology, Yemen · Not applicable, Interventional, and Treatment
This prospective, single-arm, non-randomized interventional clinical study was designed to evaluate the immediate horizontal dimensional change in narrow alveolar ridges following osseodensification-assisted dental implant-site preparation.
Eligible participants with healed edentulous sites in the maxilla or mandible underwent implant-site preparation using osseodensification burs operated in densifying mode. Alveolar ridge width was measured directly using standardized Micro Castroviejo bone calipers at three predefined levels: the crestal level and 5 mm and 10 mm apical to the crest. Measurements were obtained immediately before and immediately after osseodensification-assisted osteotomy preparation.
The primary outcome was the within-site change in alveolar ridge width at the three measurement levels. Additional assessments included insertion torque at implant placement and recorded postoperative complications. The study included a single treatment group and did not include a conventional-drilling or alternative ridge-expansion comparison group
This study used a prospective, single-arm, non-randomized interventional design to assess immediate alveolar ridge-width changes following osseodensification-assisted implant-site preparation.
Eligible adult participants had healed edentulous sites requiring dental implant placement and presented with limited horizontal alveolar ridge width. Implant sites were located in either the maxilla or mandible and included anterior and posterior regions.
Preoperative CBCT examination was performed for implant planning and assessment of ridge dimensions. During surgery, local anesthesia was administered and a full-thickness mucoperiosteal flap was reflected. Baseline ridge width was measured directly using standardized Micro Castroviejo bone calipers at the crestal level and at 5 mm and 10 mm apical to the crest.
Implant-site preparation began with a pilot drill, followed by sequential osseodensification burs operated in counterclockwise densifying mode under copious irrigation. After completion of the osteotomy and before implant insertion, ridge-width measurements were repeated at the same predefined reference levels.
The primary assessment was the within-site difference between the post-osseodensification and baseline clinical measurements at each level. Dental implants were subsequently placed, and primary mechanical stability was assessed using insertion torque. Postoperative events were recorded during the scheduled follow-up period.
Some participants contributed more than one implant site. Enrollment therefore refers to the number of participants, whereas ridge-width and implant-related measurements were recorded at the implant-site level.
318 studies on the registry are indexed under Alveolar Bone Loss; 79 are open to participants now.
This study's enrollment of 35 is above the median of 25 across 269 interventional studies indexed under Alveolar Bone Loss.
Browse Alveolar Bone Loss studies →University of Science and Technology, Yemen is the lead sponsor of 9 studies on the registry; 1 is open to participants now.
Counted across the registry records on this site, refreshed daily.
Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.
Exclusion Criteria:
Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Judged by the study doctor to matter for your health or for the study. It is a doctor’s decision, so ask the study team if you are unsure whether something counts.
Anti-inflammatory medicines such as prednisone, prednisolone and dexamethasone — not the anabolic steroids used for muscle.
Studies differ in what they allow: check which steroid medicines, routes (tablets, injections, creams, inhalers, eye drops) and doses this study accepts.
Informed consent
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Clinically significant
Judged by the study doctor to matter for your health or for the study. It is a doctor’s decision, so ask the study team if you are unsure whether something counts.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Corticosteroids (steroids)
Anti-inflammatory medicines such as prednisone, prednisolone and dexamethasone — not the anabolic steroids used for muscle.
Studies differ in what they allow: check which steroid medicines, routes (tablets, injections, creams, inhalers, eye drops) and doses this study accepts.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Participants with healed edentulous sites and limited horizontal alveolar ridge width underwent dental implant-site preparation using the osseodensification technique. Baseline ridge-width measurements were obtained using standardized Micro Castroviejo bone calipers at the crestal level and at 5 mm and 10 mm apical to the crest. Following osseodensification-assisted osteotomy preparation, ridge-width measurements were repeated at the same reference levels before implant insertion.
Procedure: Densah burs (Osseodensification Technique)
Dental implant osteotomies were prepared using sequential osseodensification burs operated in counterclockwise densifying mode under copious irrigation. The burs were advanced using a controlled pumping motion according to the study protocol. Ridge width was measured immediately before and after completion of the osteotomy at three predefined levels, followed by dental implant placement and insertion-torque recording.
Also known as: Osseodensification-Assisted Implant-Site Preparation, Densah burs, Densifying osteotomy preparation, Non-subtractive drilling protocol, Osseodensification drilling technique
Change in Alveolar Ridge Width Following Osseodensification
Change in alveolar ridge width, measured in millimeters, using standardized Micro Castroviejo bone calipers at three predefined reference levels: (1) the crestal bone level, (2) 5 mm apical to the crest, and (3) 10 mm apical to the crest. Measurements were obtained immediately before osteotomy preparation and immediately after completion of osseodensification-assisted osteotomy preparation, before implant insertion. The outcome was calculated separately at each level as the post-osseodensification measurement minus the corresponding baseline measurement.
Time frame: Intraoperative assessment: immediately before and immediately after osseodensification during the same surgical procedure
Insertion Torque at Dental Implant Placement
Primary mechanical implant stability was assessed by recording the maximum insertion torque, measured in Newton-centimeters (Ncm), at the time of dental implant placement following osseodensification-assisted osteotomy preparation.
Time frame: Intraoperative assessment at the time of implant placement.
Occurrence of Postoperative Clinical Complications
The occurrence of recorded postoperative clinical events was assessed after implant placement. Events included pain, edema, infection, paresthesia, supuration, and other clinically documented complications. Each event was recorded using the prespecified study definitions and reported using the number of participants and implant sites with available follow-up data.
Time frame: From the surgical procedure through the 12-week postoperative follow-up period.
Agreement Between Baseline CBCT and Direct Clinical Caliper Measurements
Agreement between preoperative CBCT-derived alveolar ridge-width measurements and direct intraoperative baseline measurements obtained using Micro Castroviejo bone calipers was assessed at the crestal level and at 5 mm and 10 mm apical to the crest. The comparison included paired differences, rank correlations, and descriptive Bland-Altman limits of agreement. The analysis assessed baseline measurement correspondence and did not compare postoperative caliper measurements with postoperative CBCT.
Time frame: Preoperative CBCT assessment and intraoperative baseline measurement before osseodensification.
Plan to share: No
No publications or documents are linked to this record.
This study is active, not recruiting, as verified in Aug 2026. You cannot join it, but the record below documents what was studied.
Get an email when the registry record changes — status, dates, results — or when someone posts here.
Sign in to followQuestions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.
Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.
Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.
University of Science and Technology, Yemen