A Closed Surgical Technique vs Papilla Preservation Techniques

A pioneer periodontal surgical approach employing the closed surgical technique (CST) has been designed to gain access to isolated interdental periodontal defects and retain the soft-tissue architecture. This technique is based on a modified tunnelling technique to retract full-thickness gingival flaps from the osseous defect in a closed manner retaining intact the interproximal papilla thus, suturing is not required. A randomised controlled clinical trial will determine the efficacy of the CST versus the access flap employing papilla preservation techniques over a period of 6 months.

Inclusion Criteria:Systematically healthy subjects, not having consumed antibiotics 3 months before surgical periodontal treatment (baseline)Smokers <5 cig/day, former smokers or no smokersPeriodontal patients fulfilling non surgical initial periodontal treatment at least 3 months before surgical periodontal treatment (baseline day) and presenting at least one residual pocket with PPD and CAL ≥6mm and bleeding on probing, located interproximally with intrerdental site ≥2mm.Compliant patients presenting high standards of oral hygiene (full mouth Plaque Index <20%) strictly susceptible in Supportive Periodontal TreatmentExclusion Criteria:Untreated active periodontal inflammationPoorly controlled systematic diseasesDisorders compromise wound healingBisphosphonate medicationsPatients under radiotherapy or chemotherapyDrug-indused gingival hyperplasiaPregnancy or lactationPoor compliance during steps 1 and 2 of cause-related periodontal treatmentCompromised oral hygiene (full mouth Plaque Index >30%), circumferential bone defect or narrow intrerdental site ≤2mm.