The aim of the research is to evaluate the clinical outcome of short dental implants, characterized by a new macro-structural design and inserted in the upper or lower jaw in patients with reduced bone volume. The clinical outcomes will be compared for different surface treatments of implant neck and those of prosthetic components.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
TRIPLE
Enrollment
30
The intervention will consist of placement of two types of short implants (one with traditional machined collar and one with anodized collar). After their healing period, the prosthetic rehabilitation will be made.
Clinica Odontoiatrica, University of Foggia
Foggia, Italy
University of Genoa
Genova, Italy
University of Turin
Torino, Italy
Marginal Bone remodeling around the implant
The marginal bone remodeling will be evaluated by Radiographic examination. Periapical radiographs will be performed using paralleling technique with a Rinn-type positioner, customized for each patient at implant placement (T0), prosthetic restoration delivery (T1), and after 12 months (T2).Peri-implant bone levels will be measured at each time point as the linear distance (in mm) between implant platform and bone crest at mesial and distal aspects of each implant. A positive value will be assigned if the bone crest is coronal to the implant platform, whereas a negative value will be assigned if the first bone-to implant contact is apical to the implant platform. All measurements will be performed by two examiners, using measuring software (Image J). Each measurement will be performed three times at three different points.
Time frame: 0-4-12 months after implant placement
Periodontal indexes: Probing Depth
Probing Depth (PD) will be calculated as the distance (in mm) from the gingival peri-implant margin to the bottom of the peri-implant pocket.
Time frame: The measurements will be performed at 4 (T1) and 12 (T2) months after implant placement.
Implant Stability evaluation
Primary and secondary implant stability will be measured with resonance frequency analysis (RFA) and subsequently expressed as an implant stability quotient (ISQ). The Implant stability will be measured immediately after placement (T0) and at 4 months (T1) after placement, when the osseointegration is supposed to take place.
Time frame: 0-4 months.
Bleeding on Probing
Bleeding on probing (BoP) will be scored dichotomously (Yes/No). The probing will be performed on 6 sites around the implant (3 buccal and 3 palatal/lingual) and appearance of blood will be registered (Yes). The final score will be expressed as number of bleeding sites/total of probed sites (%)
Time frame: The measurements will be performed at 4 (T1) and 12 (T2) months after implant placement.
Suppuration on probing
Suppuration on probing (SUP) will be scored dichotomously (Yes/No). The probing will be performed on 6 sites around the implant (3 buccal and 3 palatal/lingual) and appearance of pus or purulent exudate will be registered (Yes). The final score will be expressed as number of suppurative sites/total of probed sites (%)
Time frame: The measurements will be performed at 4 (T1) and 12 (T2) months after implant placement.
Plaque index of peri-implant tissues
Plaque Index (PI) will be calculated by assigning a binary score to each surface (1= plaque present, 0 = plaque absent).
Time frame: The measurements will be performed at 4 (T1) and 12 (T2) months after implant placement.
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