Rough vs Hybrid-surface implants for maxillary All-on-4 overdentures

Rough v’s Hybrid- surface Implants for maxillary All-On-4 over-dentures: Clinical, patient and cost outcomes

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

ISRCTN

Registry ID

ISRCTN57543596

Enrollment

Registered

2016-08-04

Start date

2016-09-01

Completion date

Unknown

Last updated

2026-01-05

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Treatment with full-arch maxillary removable bridges Oral Health

Interventions

Pre-surgical phase Patients will be screened through clinical examination, inclusion and exclusion criteria. Recording of opposing dentition. OHRQoL by way of OHIP-14 questionnaire and collection of i

Eligibility

Sex/Gender

All

Age

21 Years to 100 Years

Inclusion criteria

Inclusion criteria: 1. Dentate and fully edentulous patients requiring treatment with full-arch maxillary over-dentures 2. Aged over 21 years

Exclusion criteria

Exclusion criteria: 1. Patients with poor oral health or motivation 2. Patients who smoke and have periodontal disease 3. Previous irradiation treatment to the head and neck 4. Bisphosphonate medication 5. Psychological disorders 6. Immunosuppressed or immunocompromised patients 7. Patients with implants placed with <25Ncm placement torque

Design outcomes

Primary

Measure	Time frame
Implant success is assessed by measuring degree of bone loss using radiographic measurements of distance from implant shoulder to marginal bone on mesial and distal aspects of implant at baseline 3 and 6 months, 1, 2, 3 and 5 years.	—

Secondary

Measure	Time frame
1. Patient satisfaction is measured using the Oral Health Impact Profile (OHIP 14) questionnaire before treatment, 6 months, 1, 3 and 5 years 2. Pocket depth is measured in oral examinations by the clinician at 3 and 6 months, 1, 2, 3 and 5 years 3. Bleeding on probing is measured in oral examinations by the clinician at 3 and 6 months, 1, 2, 3 and 5 years 4. Bone loss is measured by reviewing radiographic data collected at baseline then 3 and 6 months, 1, 2, 3 and 5 years 5. Cost is measured by chair time-recorded for each patient on each clinic visit and prosthetic maintenance (recorded for each patient requiring maintenance) at any time up to the end of the study (5 years)	—

Measure

Time frame

1. Patient satisfaction is measured using the Oral Health Impact Profile (OHIP 14) questionnaire before treatment, 6 months, 1, 3 and 5 years 2. Pocket depth is measured in oral examinations by the clinician at 3 and 6 months, 1, 2, 3 and 5 years 3. Bleeding on probing is measured in oral examinations by the clinician at 3 and 6 months, 1, 2, 3 and 5 years 4. Bone loss is measured by reviewing radiographic data collected at baseline then 3 and 6 months, 1, 2, 3 and 5 years 5. Cost is measured by chair time-recorded for each patient on each clinic visit and prosthetic maintenance (recorded for each patient requiring maintenance) at any time up to the end of the study (5 years)

—

Countries

Scotland, United Kingdom

Contacts

Public ContactDavid Offord

Outcome results

None listed

Source: ISRCTN (via WHO ICTRP) · Data processed: Feb 4, 2026