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Romasco T, Pignatelli P, Tumedei M, Hossein HHS, Cipollina A, Piattelli A, Inchingolo F, Di Pietro N. The influence of truncated-conical implant length on primary stability in maxillary and mandibular regions: an in vitro study using polyurethane blocks. Clin Oral Investig 2023; 28:28. [PMID: 38147179 DOI: 10.1007/s00784-023-05444-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Accepted: 12/17/2023] [Indexed: 12/27/2023]
Abstract
OBJECTIVES This in vitro study is aimed at assessing whether implant primary stability is influenced by implant length in artificial bone with varying densities. MATERIALS AND METHODS A total of 120 truncated-conical implants (60 long-length: 3p L, 3.8 × 14 mm; 60 short-length: 3p S, 3.8 × 8 mm) were inserted into 20, 30, and 40 pounds per cubic foot (PCF) density polyurethane blocks. The insertion torque (IT), removal torque (RT), and resonance frequency analysis (RFA) values were recorded for each experimental condition. RESULTS In 30 and 40 PCF blocks, 3p S implants exhibited significantly higher IT values (90 and 80 Ncm, respectively) than 3p L (85 and 50 Ncm, respectively). Similarly, RT was significantly higher for 3p S implants in 30 and 40 PCF blocks (57 and 90 Ncm, respectively). However, there were no significant differences in RFA values, except for the 20 PCF block, where 3pS implants showed significantly lower values (63 ISQ) than 3p L implants (67 ISQ) in both the distal and mesial directions. CONCLUSIONS These results demonstrated that the implant's length mainly influences the IT and RT values in the polyurethane blocks that mimic the mandibular region of the bone, resulting in higher values for the 3p S implants, while the RFA values remained unaffected. However, in the lowest density block simulating the maxillary bone, 3p L implants exhibited significantly higher ISQ values. CLINICAL RELEVANCE Therefore, our data offer valuable insights into the biomechanical behavior of these implants, which could be clinically beneficial for enhancing surgical planning.
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Affiliation(s)
- Tea Romasco
- Center for Advanced Studies and Technology-CAST, "G. D'Annunzio, University of Chieti-Pescara, Via Luigi Polacchi 11, 66100, Chieti, Italy
- Department of Medical, Oral and Biotechnological Sciences, "G. D'Annunzio" University of Chieti-Pescara, Via dei Vestini 31, 66100, Chieti, Italy
| | - Pamela Pignatelli
- Department of Medical, Oral and Biotechnological Sciences, "G. D'Annunzio" University of Chieti-Pescara, Via dei Vestini 31, 66100, Chieti, Italy
| | - Margherita Tumedei
- Department of Medical, Surgical, and Dental Sciences, University of Milan, Via della Commenda 10, 20122, Milan, Italy
| | - Hamid Heydari Sheikh Hossein
- Center for Advanced Studies and Technology-CAST, "G. D'Annunzio, University of Chieti-Pescara, Via Luigi Polacchi 11, 66100, Chieti, Italy
- Department of Medical, Oral and Biotechnological Sciences, "G. D'Annunzio" University of Chieti-Pescara, Via dei Vestini 31, 66100, Chieti, Italy
- Villa Serena Foundation for Research, Via Leonardo Petruzzi 42, 65013, Città Sant'Angelo, Italy
| | | | - Adriano Piattelli
- School of Dentistry, Saint Camillus International, University of Health and Medical Sciences, Via di Sant'Alessandro 8, 00131, Rome, Italy
- Facultad de Medicina, UCAM Universidad Católica San Antonio de Murcia, Av. de los Jerónimos 135, 30107, Guadalupe de Maciascoque, Spain
| | - Francesco Inchingolo
- Interdisciplinary Department of Medicine, University of Bari "Aldo Moro", Piazza Umberto I, 70121, Bari, Italy
| | - Natalia Di Pietro
- Center for Advanced Studies and Technology-CAST, "G. D'Annunzio, University of Chieti-Pescara, Via Luigi Polacchi 11, 66100, Chieti, Italy.
- Department of Medical, Oral and Biotechnological Sciences, "G. D'Annunzio" University of Chieti-Pescara, Via dei Vestini 31, 66100, Chieti, Italy.
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