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International Journal of Implant Dentistry
Fig. 5 | International Journal of Implant Dentistry

Fig. 5

From: Efficacy of stem cell allograft in maxillary sinus bone regeneration: a randomized controlled clinical and blinded histomorphometric study

Fig. 5

a 4 months of healing before implant placement surgery. b Full-thickness flap reflection to retrieve the core samples and tacks before implant placement. c Core samples retrieved from anterior and posterior sinus regions. d Fully guided implant placements using the surgical guide. e Tension-free primary closure after implant surgery

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