The International journal of prosthodontics · 2026
Clinical Evaluation of Two Different Healing Protocols for the Single Implant Retained Mandibular Overdenture. A Randomized Clinical Trial.
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Foda Karim, Nabi Nouran Abdel, Nagib Amr Ahmed, Aal Marwa Abdel
Аннотация
PURPOSE: To record Implant stability and marginal bone height changes for Submerged and Non submerged protocol for the Single Implant Retained Mandibular Overdenture (SIMRO).
MATERIALS AND METHODS: A single symphseal implant was installed in a completely edentulous mandible. At implant placement, the Implant Stability Quotient (ISQ) was recorded using the Osstell device. Using sealed envelopes, patients were randomized into Non-submerged (NS) and Submerged (S). After 3 month, implant stability for both groups was recorded using Osstell device (ISQ). The periotest device was used to follow up implant stability (PTV), and marginal bone height changes were recorded at pick up and after 12 month. Comparison of ISQ within groups was done using the Paired t-test. The Mann- Whitney U test for two independent groups was used to compare between marginal bone height changes and PTV. P values less than 0.05 was considered statistically significant.
RESULTS: A significant decrease in the ISQ values for both groups was observed, NS showed a statistically significant higher ISQ value (74.89±3.473) than S (71.53±6.122) (P=0.017) after 3 month. Marginal bone height changes and PTV didn't show any significant difference but were in favor for NS protocol.
CONCLUSIONS: Both healing protocols showed physiologically acceptable implant stability and marginal bone height changes after 12 month. The Non submerged protocol improved stability with minimum marginal bone height changes for SIMRO.
MATERIALS AND METHODS: A single symphseal implant was installed in a completely edentulous mandible. At implant placement, the Implant Stability Quotient (ISQ) was recorded using the Osstell device. Using sealed envelopes, patients were randomized into Non-submerged (NS) and Submerged (S). After 3 month, implant stability for both groups was recorded using Osstell device (ISQ). The periotest device was used to follow up implant stability (PTV), and marginal bone height changes were recorded at pick up and after 12 month. Comparison of ISQ within groups was done using the Paired t-test. The Mann- Whitney U test for two independent groups was used to compare between marginal bone height changes and PTV. P values less than 0.05 was considered statistically significant.
RESULTS: A significant decrease in the ISQ values for both groups was observed, NS showed a statistically significant higher ISQ value (74.89±3.473) than S (71.53±6.122) (P=0.017) after 3 month. Marginal bone height changes and PTV didn't show any significant difference but were in favor for NS protocol.
CONCLUSIONS: Both healing protocols showed physiologically acceptable implant stability and marginal bone height changes after 12 month. The Non submerged protocol improved stability with minimum marginal bone height changes for SIMRO.