The work hyposesis is based on the application of a chlorhexidine gel against the non-application on the healing abutments in patients who have received a submerged titanium implant to check its effect on healing and prevention of bacterial plaque accumulation during a period of 1 month.

Once the implants are integrated, and given the consent, the patients will be operated to connect the healing abutments as they come from the manufacturer (Mozo Grau, Ticare®). Patients will follow the study protocol in 2 arms.

The random distribution is made prior to assignment following the internet program https://www.random.org

Inclusion Criteria:

• Good systemic health status (ASA I or II).
• No current pain.
• No use of painkillers or Anti-inflammatory drugs in the prior weeks.
• Older than 18 years.
• Oral hygiene index of ≤ 2 (Löe and Silness).
• A minimum of 2 mm of adhered gum.
• A minimum of 8 mm of vertical bone.
• A minimum of 7 mm of vestibule-lingual bone.
• Scheduled to receive a unitary implant.
• Willing to participate in this controlled study.

Exclusion Criteria:

• Pregnant or nursing women.
• Use of any type of medication that might affect the perception of pain.
• An history of alcohol or drug abuse.
• A requirement for guided regeneration or sinus lifting procedures.
• Failure to comply with the study protocol.

Non-personal data

After the publication of the results

Any interested researcher

Double blindness performed for patients and for statistical analysis