Two different implants will be used in post-extraction sockets and ISQ will be recorded monthly from insertion moment to 12 months of follow up to understand if ISQ can be affected by implant macro design

Inclusion Criteria:

• Patients (at least 18 years old) presenting with failing tooth.
• no recession of gingival contour of tooth to be extracted
• no periodontal bone loss of neighboring teeth
• no implants in neighboring teeth
• class I extraction socket (intact buccal wall)
• atraumatic extraction of the tooth with intact socket walls remaining.

Exclusion Criteria:

• deep bite (severe II class)
• systemic disease (diabetes, osteoporosis)
• heavy smokers (more than 10 cigarettes/day)