Pardo Zamora, Guillermo

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Pardo Zamora, Guillermo

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Pardo Zamora, Guillermo

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Universidad de Murcia. Departamento de Dermatología, Estomatología,Radiología y Medicina Física

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Open Access
Immediate post-extraction implants placed in acute periapical infected sites with immediate prosthetic provisionalization: a 1-year prospective cohort study1
(Medicina Oral S.L., 2020) Daniel Muñoz-Camara; Osmundo Gilbel-Del Águila; Pardo Zamora, Guillermo; Camacho Alonso, Fabio; Dermatología, Estomatología, Radiología y Medicina Física; Facultades de la UMU
Background: Few studies have reported the outcomes of immediate placement at infected post-extraction sites. The aim of this study was to compare clinical and radiological outcomes of immediately placed implants with im- mediate prosthetic provisionalization in sockets with or without acute periapical pathology. Material and Methods: A total of 100 patients with immediately placed implants with immediate provisionaliza- tion and 1- year of follow up were included (50 patients with acute periapical pathology and a control group of 50 patients without acute periapical pathology). Clinical parameters (bleeding on probing, buccal keratinized mucosa width, clinical recession, and probing depth) and radiological parameters (distance from implant shoulder to first point of bone-to-implant contact [IS-BIC]) were assessed. Results: Clinical parameters showed no significant differences between the study and control groups after 1-year follow up (p>0.05). IS-BIC presented the following values: 0.35 ± 0.51 mm (study group) and 0.15 ± 0.87 mm (control), without significant differences between the groups (p=0.160). None of the 50 radiographs of immediate implants placed in sockets with periapical pathology revealed retrograde peri-implantitis. Conclusions: Immediate placement of implants with immediate prosthetic provisionalization at sites with acute periapical pathology can be a successful treatment modality for at least 1-year.
Open Access
Compressive osteotomes for expansion and maxilla sinus floor lifting
(2005) Calvo Guirado José Luis; Rosario Saez Yuguero; Guillermo Pardo Zamora; Pardo Zamora, Guillermo; Dermatología, Estomatología, Radiología y Medicina Física; Facultades de la UMU
Objetivo: El objetivo de este artículo es evaluar la eficacia de la técnica del ensanchamiento alveolar posterior y elevacióndel reborde alveolar del maxilar superior mediante el uso de los osteotomos compresivos ( Quirurgical Bontempi, España) especialmente diseñados para los implantes Osseotite NT y Osseotite NT Certain de 3i ( Implants Innovations, USA). Material y métodos: En el estudio se incluyeron 24 pacientes (16 mujeres y 8 hombres) siguiendo los criterios de inclusión y exclusión de Albrektsson, que presentaban un déficit óseo en anchura y altura del maxilar superior. Se colocaron 48 implantes Osseotite( cuatro Osseotite Standard, seis Ossoetite NT y treinta y ocho NT Certain (3i, Implantes Innovations, CA, USA). El diámetro de losimplantes fueron 44 de 4 mm y 4 de 5 mm con longitudes que variaban entre 11.5 (n=4) y 13 mm (n= 44). La cresta alveolar inicialtenía una anchura que variaba de 1.5mm a 5 mm y una altura que oscilaba entre 5 mm y 13 mm en los 24 pacientes. Resultados: Los datos obtenidos fueron analizados con el programa SPSS 11.0. En los 48 sitios tratados donde se colocaron los implantes inmediatos se obtuvo un aumento de altura ósea de 6.75 mm ± 1.25 mm En el ensanchamiento alveolar de los48 sitios implantados la media fue de 3.2 mm ± 0.15 mm. Conclusiones: La técnica de ensanchamiento y elevación alveolar del maxilar superior con osteotomos compresivos permite obtener un porcentaje de éxito de un 100 % a los 9 meses de seguimiento en los implantes y prótesis colocadas. Es un procedimiento quirúrgico con alta predictibilidad y además permite la colocación los implantes en el mismo acto quirúrgico reduciendo el número de cirugías, devolviendo la estética y función del paciente perdidas
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A Maxillary Ridge-Splitting Technique Followed by Immediate Placement of Implants: A Case Report
(Lippincott Williams & Wilkins, 2005) Calvo Guirado, Jose Luis; Saez Yuguero, María Rosario; Carrión del Valle, María José; Pardo Zamora, Guillermo; Dermatología, Estomatología, Radiología y Medicina Física; Facultades de la UMU
Maxillary alveolar atrophy often limits the placement of dental im- plants. This article reports on a refine- ment of a technique for widening the atrophic ridge by splitting the alveolar bone longitudinally. Treatment of a patient with a severely resorbed eden- tulous maxilla is described. Six 4-mm wide by 13-mm long threaded Osseo- tite implants were placed immediately within thesplit ridge and surrounded- with amixture of autogenous tuberos- ity and bovine bone. The advantages of this technique for patients include less surgical trauma and condensed treatment time.
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Aesthetic outcomes of different materials for delayed, single-tooth restorations for immediately placed implants. A randomized controlled clinical trial
(Elsevier, 2024-07) Pardo Zamora, Guillermo; Molina-González, Juan Manuel; Martínez Marco, José Francisco; Ortiz Ruiz, Antonio José; Mardas, Nikos; García-Sánchez, Rubén; Dermatología, Estomatología, Radiología y Medicina Física; Clínica Odontológica Integrada Infantil
Objectives The aim of this study is to compare the aesthetic outcomes of metal porcelain (C), lithium disilicate (T1) and porcelain-layered zirconium (T2) immediate implant-supported single crowns in the anterior maxilla. Materials and methods Forty-five immediate dental implants were provided for 45 patients that required the extraction of a single tooth in the anterior maxilla. A temporary prosthesis was provided at 8 weeks after placement followed by the final prosthesis at 24 weeks post-implantation. The patients were randomly allocated into 3 groups: 15 patients in the control group (C) received a metal-porcelain restoration, 15 patients (T1) received a lithium disilicate (LD) restoration and 15 patients (T2) received a porcelain-layered, zirconium (Z) restoration. Pink (PES) and White (WES) esthetic scores, radiographic bone levels, periodontal parameters and patient's esthetic satisfaction using a visual analogue scale (VAS) were evaluated at the time of final restoration placement (t0) and at 12-months post-loading (t12). Results No implants were lost during the duration of this study. Statistically significant higher WES and VAS scores (p < 0.05) were recorded in T1 vs C and T1 vs T2 groups respectively. Similar radiographic bone levels and periodontal parameters were recorded in all groups. Conclusion Within the limitations of this study, it was concluded that T1 restorations provided better WES outcomes when compared to C restorations and better VAS scores when compared to T2 restorations at 12 months post-loading. Besides, different material interphases did not have an impact in PES, bone levels or periodontal parameters. Clinical relevance There is limited data comparing aesthetic outcomes of implant supported single crowns made of different ceramic materials based on accepted and comparable indexes and the evaluation of the patient's perspective regarding these aesthetic outcomes.
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Immediate Provisionalization on a New Implant Design for Esthetic Restoration and Preserving Crestal Bone
(Lippincott Williams & Wilkins, 2007-06-01) Calvo Guirado, José Luis; Saez Yuguero, María Rosario; Muñoz Barrio, Emilio; Pardo Zamora, Guillermo; Dermatología, Estomatología, Radiología y Medicina Física; Facultades de la UMU
Purpose: This article describes how the concept of platform switch- ing has been incorporated into a new implant design as a method of reducing crestal bone loss and main- taining the gingival papillae. A 6-month study of the effects of this implant on bone loss is described. Materials: T en new platform switched implants were placed into fresh anterior maxillary extraction sites in 3 men and 7 women, ranging in age between 29 and 45 years old, and immediately provisionalized. The adjoining bone height was evaluated with digital radiography on the day after implant placement, and at 15 days, 1, 2, 3, and 6 months later. 06Results: After 6 months, the mean bone loss on the mesial of the central- incisor implants was 0.05 mm. The mean bone loss was 0.07 mm on the distal of the central incisor implants, 0.07 mm on the mesial of the lateral- incisor implants, and 0.06 mm on the distal of the lateral-incisor implants. Conclusions: An implant design that incorporates the concept of plat- form switching is a simple and effective way to control circumferential bone loss around dental implants, helping to en- sure a predictable esthetic result.
Open Access
Treatment of stage 2 medication-induced osteonecrosis of the jaw: a case series
(MDPI, 2021-01-24) Martínez, Yanet; Pardo Zamora, Guillermo; Moreno Rodríguez, José Antonio; Ortiz Ruiz, Antonio José; Dermatología, Estomatología, Radiología y Medicina Física
Medication-induced jaw osteonecrosis (MRONJ) is a rare and serious disease with a negative impact on patients’ quality of life, whose exact cause remains unclear and which may have a multifactorial origin. Although there are different therapeutic protocols, there is still no consensus. This case series evaluated three patients diagnosed with staged 2 MRONJ treated at the University of Murcia dental clinic according to the protocols described by the Spanish Society of Oral and Maxillofacial Surgery and the American Association of Oral and Maxillofacial Surgeons. Within 12 months of the application of therapeutic protocols, the lesions were completely healed in all cases. Radiography showed slow but progressive healing with normal bone structure. Conservative treatment with antibiotics, chlorhexidine rinses and minimally invasive surgical intervention with necrotic bone resection is effective in treating stage 2 of MRONJ. In cases of refractory osteonecrosis, the application of platelet and leukocyte-rich fibrin (PRF-L) in the surgical approach improves the outcome in soft tissue healing and bone regeneration but further research is needed to confirm its effectiveness.
Open Access
Comparison of clinical outcomes of immediate versus delayed placement of dental implants: A systematic review and meta- analysis
(Wiley, 2021) Dopico, Jose; Kalemaj, Zamira; Buti, Jacopo; Ruben Garcia-Sanchez; Mardas, Nikos; Pardo Zamora, Guillermo; Dermatología, Estomatología, Radiología y Medicina Física; Facultades de la UMU
Objective: Two focused questions were addressed: Focused question (Q1) 1) Are there any differences between immediate and delayed placement in terms of (i) sur- vival rate, (ii) success rate, (iii) radiographic marginal bone levels, (iv) height/(v)thick- ness of buccal wall, (vi) peri-implant mucosal margin position, (vii) aesthetics outcomes and (viii) patient reported outcomes? Focused question 2 (Q2) What is the estimated effect size of immediate implant placement for all parameters included in Q1? Materials and methods: An electronic search (MEDLINE, EMBASE, The Cochrane Central Register of Controlled Trials and OpenGray) and hand search were conducted up to November 2019. Randomised controlled trials (RCT) with delayed implant place- ment as controls were eligible in the analysis for Q1. Immediate dental implant arms RCTs, controlled clinical trials (CCTs) and prospective case series of immediate implant placement were eligible in the analysis for Q2. Results: Six papers (RCTs) were included in the analysis for Q1 and 53 papers (22 RCTs, 11 CCTs and 20 case series) for Q2. Q1: Meta-analyses did not show any signifi- cant difference in implant survival, but it did for bone levels and PES scores at 1 year post-loading, favouring the immediate group. Q2: Meta-analyses showed that imme- diate implants had a high survival rate (97%) and presented high PES scores (range 10.36 to 11.25). Information regarding marginal bone loss and gingival/papillary re- cession varied among all included studies. Conclusion: Similar survival rate was found between immediate and delayed implants. Immediate implants presented threefold early complications and twofold delayed complications. Success criteria should be reported more consistently, and the inci- dence/type of complications associated with immediate implants should be further explored.