Definition of a drilling protocol for mini dental implants in different bone qualities

Dörsam, Istabrak; Bauroth, A.; Keilig, Ludger; Bourauel, Christoph; Heinemann, Friedhelm

doi:10.1016/j.aanat.2020.151511

Cited by 5 publications

(5 citation statements)

References 20 publications

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“…Therefore, the findings from this study corroborate the recommendation from the manufacturer to utilize site‐specific drilling protocols, according to the bone site density 19 . This clinical data is also in agreement with a previous in vitro study which evaluated drilling protocols for mini implants, where bone quality was a major determinant of final insertion torque, independent of the protocol used 17 . Therefore, careful attention should be paid to the use of the needle and pilot drills, and depth of preparation.…”

Section: Discussionsupporting

confidence: 90%

“…19 This clinical data is also in agreement with a previous in vitro study which evaluated drilling protocols for mini implants, where bone quality was a major determinant of final insertion torque, independent of the protocol used. 17 Therefore, careful attention should be paid to the use of the needle and pilot drills, and depth of preparation.…”

Section: Discussionmentioning

confidence: 99%

“…15,16 Consequently, the selection of a suitable drilling protocol for each specific bone site is essential for the control of insertion torque levels, and should be adapted to the implant design. 17 With excessive insertion torque values, the reduced dimensions of mini implants could increase the risk of implant fracture, deterioration of the prosthetic interface (especially in one-piece mini implants), as well as damage to the surgical instruments. Currently, there is scarce clinical evidence published to guide site-specific drilling protocols for mini implant placement.…”

Section: Introductionmentioning

confidence: 99%

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Mandibular bone characteristics, drilling protocols, and final insertion torque for titanium‐zirconium mini‐implants for overdentures: A cross‐sectional analysis

Leles

Curado

et al. 2023

Clin Implant Dent Rel Res

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Objective: The aim of this study was to assess the final insertion torque values achieved using site-specific drilling protocols for a novel mini implant system for removable complete overdentures. Anatomical and technical factors influencing final insertion torque were recorded and analyzed.Material and Methods: Participants were randomized to two surgical protocol groups (flapped or flapless) and all received four mini implants (Straumann ® mini implant system; Straumann AG) in the anterior mandible, using a 1.6 mm needle drill and a 2.2 mm pilot drill for the implant bed site preparation. The final insertion torque was recorded as the main outcome variable during surgery. Bone type, radiographical bone density, ridge form, implant length, and the drilling protocol were considered as independent variables. Descriptive statistics, generalized estimating equations (GEE) regression, and heatmap charts were used for data analyses.Results: A total of 296 mini implants were placed in 74 patients (mean age = 64.1 ± 8.0; 64.9% female) using flapless (n = 37) or flapped (n = 37) surgeries. Mean final insertion torque was 55.8 ± 18.4 Ncm (10.5% > 35 Ncm, 48.9% between 35 and 65 Ncm, and 40.6% > 65 Ncm). The needle drill was used in only 43.9% of the implant bed sites. Higher final torque values were observed for higher bone densities (bone type I > II > III, and D1-D2 > D3-D4), highly resorbed ridge forms (5-6 > 3-4), flapped surgeries, and male patients. However, regression models showed that the likelihood of achieving optimal insertion torque (≥35 and ≤65 Ncm) was higher for females (OR = 2.14; 95%CI = 1.14-4.01; p = 0.018), ridge forms 3-4 (OR = 2.87; 95%CI = 1.05-7.85; p = 0.040), and flapless surgeries (OR = 1.96; 95% CI = 1.09-3.51; p = 0.024).Conclusions: Sufficient primary stability for immediate loading was achieved for the majority of the mini implants placed. Surgical implant bed preparation should be sitespecific to achieve optimal primary stability for immediate loading while avoiding excessive insertion torque.

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Section: Discussionsupporting

confidence: 90%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Mandibular bone characteristics, drilling protocols, and final insertion torque for titanium‐zirconium mini‐implants for overdentures: A cross‐sectional analysis

Leles

Curado

et al. 2023

Clin Implant Dent Rel Res

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show abstract

“…Las ecuaciones (23) y (24) presentan el momento flector en los planos yx y yz, para generar los diagramas de momento en la figura 5. El cortante resultante, V2, se obtiene con la ecuación (25), y el momento flector resultante M2 con la ecuación (26). El diagrama de momento torsor T2 se muestra en la figura 6, generado a partir de la ecuación (27), donde Y: distancia a lo largo del eje en milímetros, Tins2: torque de entrada al eje 2, Tins3: torque de entrada al eje 3. mm.…”

Section: Dimensionamiento De Ejesunclassified

“…En otro contexto, Dorsam et al [26] han definido un protocolo para inserción de mini implantes dentales de acuerdo con las propiedades del hueso y al tamaño del tornillo, pero no usan un banco o dispositivo. También recientemente, se ha evaluado a relación entre el torque de inserción de mini implantes dentales y la integridad de superficie en tornillos de zirconio titanio, pero usando un dinamómetro manual [27].…”

Section: Introductionunclassified

Diseño de dispositivo mecánico para determinar el torque de inserción de mini implantes dentales

Polo-Cano¹,

Rodríguez-Heilbron²,

Mckinley³

2020

revuin

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Los mini implantes dentales son tornillo que se insertan temporalmente en el maxilar de un paciente como anclaje para generar una fuerza y mover una pieza dental. Este artículo presenta el diseño de un dispositivo para la determinación del torque de inserción de mini implantes dentales autoperforantes en una probeta de hueso porcino. El mecanismo propuesto no requiere de accionamiento eléctrico. La entrada de potencia se da mediante el torque resultante del efecto del peso actuando sobre una polea a través de una cuerda. El dispositivo está compuesto portres transmisiones para la transformación de movimiento: transmisión por polea, engranajes cónicos de dientes rectos, y un mecanismo piñón-cremallera. Este último permite el avance longitudinal al tiempo que se da la rotación de la herramienta, haciendo posible el rompimiento del hueso e inserción del mini implante. A partir de la fuerza de inserción y de la velocidad recomendada para la transmisión piñón-cremallera, y teniendo en cuenta la eficiencia de cada estación de transmisión, se estableció la potencia de accionamiento del dispositivo. Para el caso de estudio se diseñó un portaherramientas adecuado para mini implante marca HUBIT Co x 1.4mm. Se consideraron tanto el diseño por fatiga como el diseño estático para el dimensionamiento de los ejes. El análisis de movimiento realizado permitió verificar que no existe interferencia entre ninguna de las piezas en contacto, permitiendo el avance del tornillo mediante la inclusión de un cuñero deslizante.

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Three-dimensional finite element analysis of the biomechanical properties of different material implants for replacing missing teeth

Gao,

He,

et al. 2024

Odontology

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Definition of a drilling protocol for mini dental implants in different bone qualities

Cited by 5 publications

References 20 publications

Mandibular bone characteristics, drilling protocols, and final insertion torque for titanium‐zirconium mini‐implants for overdentures: A cross‐sectional analysis

Mandibular bone characteristics, drilling protocols, and final insertion torque for titanium‐zirconium mini‐implants for overdentures: A cross‐sectional analysis

Diseño de dispositivo mecánico para determinar el torque de inserción de mini implantes dentales

Three-dimensional finite element analysis of the biomechanical properties of different material implants for replacing missing teeth

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