An interventional study of Conventional Impression Technique and Digital Impression with Nonmodified Scan Body in Prostheses Durability, sponsored by Mansoura University. Completed at 1 site in Egypt. Open to participants aged 45 Years to 64 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2026-06-12.
Sponsored by Mansoura University · Not applicable, Interventional, and Treatment
Quantification and visualization the internal and marginal gaps by newer digital methods, such as the triple-scan protocol described by Borga Dönmez et al. (2024), employing 3D analysis software, offering a more objective and reproducible assessment.
Mansoura University is the lead sponsor of 1,077 studies on the registry; 183 are open to participants now.
Of its 9 completed or terminated interventional studies of FDA-regulated products, 0 (0%) have results posted.
Counted across the registry records on this site, refreshed daily.
Reduced patient satisfaction regarding the stability and retention of conventional mandibular dentures due to mandibular ridge atrophy.
Completely edentulous maxillary and mandibular arches for at least 1 year. Sufficient bone volume for placement of four mandibular implants without the need for bone grafting.
Age between 45 and 64 years. Ability and willingness to provide informed consent and comply with study procedures.
Exclusion Criteria:
Current smoking habit. Bone metabolic diseases that may affect osseointegration. History of radiotherapy to the head and neck region within the previous 3 years.
Systemic conditions or medications that could compromise implant healing. Inability to attend follow-up visits or comply with study requirements.
Participants received the three impression techniques in the following order: Conventional Impression Technique Digital Impression with Nonmodified Scan Body Digital Impression with Modified Scan Body
Device: Conventional Impression Technique · Device: Digital Impression with Nonmodified Scan Body · Device: Digital Impression with Modified Scan Body
Participants received the three impression techniques in the following order: Digital Impression with Nonmodified Scan Body Digital Impression with Modified Scan Body Conventional Impression Technique
Device: Conventional Impression Technique · Device: Digital Impression with Nonmodified Scan Body · Device: Digital Impression with Modified Scan Body
Participants received the three impression techniques in the following order: Digital Impression with Modified Scan Body Conventional Impression Technique Digital Impression with Nonmodified Scan Body
Device: Conventional Impression Technique · Device: Digital Impression with Nonmodified Scan Body · Device: Digital Impression with Modified Scan Body
Conventional implant impression using impression copings and elastomeric impression material.
Digital implant impression obtained using nonmodified implant scan bodies
Digital implant impression obtained using subtractively modified implant scan bodies
Mean horizontal misfit (µm)
Mean horizontal misfit using the triple-scan protocol and STL file superimposition in software. Results will be reported in micrometers (µm).
Time frame: Day 1
Mean vertical misfit (µm)
Mean vertical misfit using the triple-scan protocol and STL file superimposition in software. Results will be reported in micrometers (µm).
Time frame: Day 1
This study is completed, as verified in Jun 2026. You cannot join it, but the record below documents what was studied.
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Mansoura University