The investigators are evaluating the use of a single implant to stabilize complete dentures in the lower jaw, in the canine region of the preferred chewing side. They are conducting this study to determine whether this treatment concept gives satisfactory results, and how it compares with the standard position in the center of the lower jaw.

Inclusion Criteria:

• Informed consent signed by the subject
• Age ≥ 60 years
• Edentulous and wearing sufficient complete maxillary and mandibular dentures or ones that can be rendered sufficient via a reline and/or renewal of the prosthetic teeth
• Healed edentulous mandible (minimum 6-8 weeks since last extraction in the anterior zone (4-4) and one year in the posterior zone (5-8))
• Physical status ASA1 and ASA2

Exclusion Criteria:

• Contraindications to the medical devices used, e.g. known hypersensitivity or allergy
• Vulnerable subjects
• Enrollment of the investigator, his/her family members, employees and other dependent persons
• Known or suspected non-compliance, drug or alcohol abuse
• Inability to perform adequate oral hygiene
• Inability to follow the procedures of the investigation, e.g. due to language problems, psychological disorders, dementia, Parkinson etc. of the subject (Dementia: clock-drawing test score ≤ 5)
• Surgical risk factors such as, but not limited to, uncontrolled diabetes, immunosuppression, radiation, chemotherapy, or antiresorptive medication (ex. Bisphosphonates)
• Heavy smoking habit: >20 cig/d
• Reported severe bruxism or clenching habits, clinically present oro-facial pain
• Depression: Geriatric Depression Scale > 9
• Xerostomia: SSFR ≤ 0.7ml/min
• Ridge dimensions <6 mm (width) by 10 mm (height) in the canine or midline area
• Ridge defects requiring bone augmentation procedures