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I n t e n t i o n a l l y e x p o s e d m e m b r a n e Another important result of this study is the regeneration of the most coronal part of the buccal plate with the combination of the ice- cream cone membrane technique and a nonre- sorbable membrane intentionally left exposed. The results of this study have shown that minimal crestal resorption occurs even if part of the buccal plate is missing. The minimal crestal resorption allows ideal implant placement with the presence of about 2 mm of residual buccal bone, funda- mental to support the soft-tissue margins, avoid- ing in this way gingival recession. These results seem to be stable even 6 months after crown placement with creeping of the soft tissue on the buccal side compared with the initial situation. However, further histological studies are needed to validate these promising clinical results. 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