Objective To investigate the effect of full-mouth implant ALL on 4 technique on the repair of dentition loss and its effect on peripheral bone resorption. Methods From January 2021 to January 2024, 96 patients with dentition loss and repair admitted to Tangshan Dental Doctor Youya Dental Clinic were randomly divided into control group (n =48) and observation group (n =48). The control group was repaired by traditional planting technology, and the observation group was repaired by full-mouth planting ALL on 4 technology. The repair effect, bone resorption around the implant, periodontal index and complications were compared between the two groups. Results The total effective rate of repair in the observation group (97.92%) was higher than that in the control group (83.33%) (P<0.05). The bone resorption around the implant in the observation group was less than that in the control group (P<0.05). The plaque index, bleeding index and probing depth in the observation group were lower than those in the control group (P <0.05). The complication rate of the observation group was 4.17%, which was less than 20.83% of the control group (P <0.05). Conclusion The effect of full-mouth implant ALL on 4 technique in the treatment of patients with dentition loss is ideal, the bone resorption around the implant is reduced, the plaque index and bleeding index are improved after repair, and the complications are less.