The aim of this study is to clinically and radiographically evaluate the dimensional changes of soft and hard peri-implant tissues around single immediate post-extraction implants in the esthetic zone.
to compare the efficacy of the socket shield technique in counteracting the dimensional changes of the soft and hard peri-implant tissues to filliing the buccal gap with xenograft. * Population (P): Patients with single non-restorable tooth in the esthetic zone. * Intervention (I): Immediate implant placement with socket shield technique. * Comparator (C): Immediate implant placement and filling the buccal gap with xenograft. * Primary Outcome (O): Pink Esthetic Score (PES) (Fürhauser et al., 2005). * Time frame: 9 months (Chu et al., 2015). * Study design: Randomized controlled clinical trial.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
SINGLE
Enrollment
22
immediate implant placement with buccal part of the root is retained
immediate implant placement with filling the buccal gap with xenograft
Cairo University
Cairo, Egypt
RECRUITINGpink esthetic score
Pink esthetic score evaluates the soft tissue esthetics around implant supported crowns. Using a 0-1-2 scoring system, 0 being the lowest, 2 being the highest value. The maximum achievable PES is 14. 7 variables are measured: mesial and distal papillae being 0 if absent, 1 if incomplete and 2 if complete. Alveolar process, soft tissue level, contour, texture and color being 0 if major discrepancy, 1 if minor discrepancy and 2 if matches the contralateral
Time frame: 9 months
Recession of the buccal peri-implant mucosa
measured at the apical zenith of the mucosal margin on the implants after digital superimposition of the optically scanned models as the vertical distance change between the former and the new position of soft tissue margins.
Time frame: 9 months
Corono-apical peri-implant bone dimensional changes
measured at the middle of the buccal implant surface after the superimposition of Cone Beam C.T scans as the difference between the former and new vertical distance from the implant platform to the buccal alveolar crest
Time frame: 6 months
Bucco-lingual peri-implant bone dimensional changes
measured at middle of the buccal implant surface 1mm below the alveolar crest after the superimposition of the Cone Beam C.T scans as the difference between the former and new horizontal distance between the buccal and the palatal plate of bone
Time frame: 6 months
Patient satisfaction: VAS
Patient satisfaction will be evaluated using a questionnaire which is based on a visual analog scale (VAS). A horizontal VAS bar, 100 mm long, with the right anchor labeled "much less than natural teeth" which is marked by zero and the left anchor labeled "much more" which is marked by 10 will be used. Five questions will be formulated to record the patients' satisfaction in terms of functionality and from an esthetic point of view. Participants will look in a mirror and also be viewed a photograph before recording their answers on the horizontal calibrated line.
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Time frame: 9 months