This study investigated the effectiveness of scaling/root planing using closed approach, closed approach with laser-curettage, closed approach with laser-curettage/laser-sealing, and an open approach (papilla reflection/flap closure) in treating moderate-advanced chronic periodontitis. All treatments resulted in a reduction in probing depth and bleeding upon probing. The closed approach therapies: SRP, laser-curettage/SRP, and laser-curettage/SRP/laser-sealing resulted in less gingival recession than the open approach (papilla reflection/flap closure). If esthetics are a concern, laser-curettage is a viable option.