D.D.S, MsC, PhDUniversidad Autónoma de Baja California Licenciatura en Odontologia Centro de Investigación y Especializacion en Rehabilitación Oral. CIERO. Endodoncia Universidad Autónoma se Nayarit. Maestría en Odontologia Universidad de Granada. Doctorado en Investigación Address: 710E San Ysidro Blvd 1513 San Ysidro Ca 92173
Objectives: To evaluate the histopathological findings of 128 persistent apical radiolucent lesio... more Objectives: To evaluate the histopathological findings of 128 persistent apical radiolucent lesions of endodontic origin obtained during apical resective surgery. Materials and methods: The case group was composed of 128 biopsies obtained through apical surgery were examined establishing the diagnosis as either periapical granuloma, radicular cyst, or abscess. The radiographic size of the lesion (area in cm2) before surgery and after two years of follow-up was measured. A statistical study was performed using analysis of variance. The hypothesis tests were conducted at the 0.05 level of significance. Results: The study comprised 128 patients, 79 women (61.71%), and 49 men (38.28%) with a mean age of 43.54 years. The histopatological analysis of the 128 apical lesions, it was found that 74.21% were from the maxilla, especially from the anterior teeth and premolars, and 25.78% from the mandible, inclusive of 72.6% granulomas, 23% periapical cysts, and 5% periapical abscesses. Apical l...
The purpose of this study was to determine if the Light Speed system compared to the Balanced For... more The purpose of this study was to determine if the Light Speed system compared to the Balanced Forces technique and the Profile system is a reliable rotary method that allows cleaning and widening of the curved root canal system equal to or better than manual instrumentation techniques or methods. Natural permanent teeth were used, where the centering and cleaning of the instrumentation was measured by means of stereoscopic microscopy, which is achieved with the Light Speed system, Profile and the Balanced Forces Technique. All the teeth used in the study were cross-sectioned every 2mm - 3mm and re-bonded in such a way that the space of the canal could be analyzed before being instrumented under the three methods of cleaning and widening. This maneuver allowed to obtain sections of the tooth in the three root thirds of the tooth, in such a way that for each third a fragment of the tooth was taken to identify the previous and subsequent condition to the instrumentation.
Aim: To report an uncommon case of an extraoral sinus tract of the facial region caused by a toot... more Aim: To report an uncommon case of an extraoral sinus tract of the facial region caused by a tooth with an acute apical abscess in the mandible. Case report: Established on oral examination and radiographic examination, an Acute Apical Abscess (cellulitis/phlegmon) of tooth 47 was diagnosed, which had resulted in a cutaneous sinus tract. The continuous purulent discharge of the sinus tract in the facial right region ceased after drainage and extraction of tooth 47. Conclusion: It is challenging to diagnose and identify a cutaneous draining sinus tract of dental origin. Thus, treatment of skin lesions of the face (impetigo), and neck odontogenic infections should always be considered. Clinical and radiographic dental examinations can identify the tooth involved.
Objective: To determine whether controlled final irrigation protocol after cleaning and shaping p... more Objective: To determine whether controlled final irrigation protocol after cleaning and shaping procedures would result in a reduced acute pain rate of single versus two-visit RCT of teeth with necrotic pulp and apical periodontitis: A multicenter clinical trial. Methodology: Ninety patients were treated. Working length was established with electronic device and confirmed radiographically. For mechanical enlargement, the Twisted file adaptive, and Protaper Next instruments were used in brushing rotary movement and reciprocating mode correspondingly. For the control group, Balanced Force technique was employed. A controlled Final irrigation protocol was used in all groups. The same clinical protocol was used in three different cities of Mexico. Results: The distribution of clinical samples was 45 teeth to one-visit and 45 teeth to two-visit treatment. Two cases (2.5%) experienced acute pain in teeth that receive an RCT. Of the earlier Asymptomatic/symptomatic teeth, the treatment was...
The aim of this study was to evaluate the outcome of single- versus 2-visit root canal treatment ... more The aim of this study was to evaluate the outcome of single- versus 2-visit root canal treatment of teeth with apical periodontitis after a 2-year follow-up period. Three hundred maxillary and mandibular nonvital teeth with apical periodontitis were treated in either a single visit or 2 visits. The main inclusion criteria were radiographic evidence of apical periodontitis (minimum size ≥ 2.0 × 2.0 mm) and a diagnosis of pulpal necrosis confirmed by a negative response to hot and cold tests. Radiographically, all teeth showed small and irregular periapical radiolucencies before treatment. The canals were enlarged with LightSpeedLSX (Discus Dental, Culver City, CA) root canal instruments to a final apical preparation size #60 for anterior and premolar teeth and size #45 to #55 for molars. The EndoVac negative-pressure irrigation system (Discus Dental) was used for disinfecting irrigation, and all canals were filled by lateral compaction of gutta-percha and Sealapex sealer (SybronEndo, Orange, CA). The healing results were clinically and radiographically evaluated 2 years postoperatively. Of the 300 teeth treated, 18 were lost to follow-up, 9 in the 2-visit group and 9 in the 1-visit group. Of the 282 teeth studied, the randomization procedure had allocated 146 teeth to 1-visit treatment and 136 teeth to 2-visit treatment. Teeth with symptoms of persisting periapical inflammation were scored as not healed. Teeth with a reduced periapical rarefaction were judged as uncertain. Teeth with complete restitution of the periodontal contours were judged as healed. In the 1-visit group, 141 of 146 teeth (96.57%) were classified as healed as compared with 121 (88.97%) of 136 teeth in the 2-visit group. Eleven cases were classified as uncertain in the 2-visit group (8.08%) compared with 4 (2.73%) in the 1-visit group. Two of 10 teeth in the 2-visit group presented with pain before the 2-year follow-up and were classified as not healed. The hypothesis tests were conducted at the 0.05 level of significance. Statistical analysis of the healing results did not show any significant difference between the groups (P = .05). Several factors play an important role in the decision-making process of 1- versus 2-visit endodontics. Among these are objective factors like preoperative diagnosis, the ability to obtain infection control, root canal anatomy, procedural complications, and subjective factors like patients' signs and symptoms. This study provided evidence that with a treatment protocol with instrumentation to predefined larger apical instrumentation sizes and irrigation with a negative apical pressure system can lead to healing in cases of apical periodontitis, which is a significant finding compared with more dated studies that showed average healing of apical periodontitis cases. With the given sample size, there was no statistically significant difference between the 2 treatment modalities.
Objective: Was to identify which lubricant was the best separating medium for taking an impressio... more Objective: Was to identify which lubricant was the best separating medium for taking an impression for an endodontic post and to determine which could be completely and rapidly eliminated from the walls of the post space. Materials and Methods: Sixty endodontically treated maxillary incisor teeth were used. They were divided into six groups, 10 teeth in each group. Each group used a different lubricant except group 6 which served as the control. Results: All five experimental groups showed that the oil and grease of the lubricants were difficult to totally eliminate from the porous dentinal surface when washed with 2cc of 96% ethyl alcohol. A post space prepared with Gates Glidden drills results in many opened dentinal tubules. These were filled with impression material when lubricants of groups I and III were used. The best results were obtained with groups 4 and 5 although some impression material remained in the deeper (middle) portion of the post space. Conclusions: This study showed that urea peroxide and glycerin and liquid hand soap were the most effective lubricating agents and were easier to remove from the post space walls with 2cc of 96% ethyl alcohol as compared with lubricants composed of mineral oil, glycerin or Dura Lay separator.
Nonsurgical endodontic retreatment of extensive periapical lesions, Sep 2015
Background: The aim of this paper is to report a non-surgical endodontic retreatment with a large... more Background: The aim of this paper is to report a non-surgical endodontic retreatment with a large periapical lesion fully repaired. The afflicted tooth was a maxillary left lateral incisor in a 42-year-old woman. Methods: The endodontic retreatment was carried out in multiple sessions, irrigation with 2.5% sodium hypochlorite and Vitapex® as intracanal medication. After 120 days, the root canal was irrigated with passive ultrasonic irrigation of 16% EDTA and 20% Citric Acid followed by a final rinse of 6% sodium hypochlorite. The tooth was filled with gutta-percha and Sealapex® sealer by the lateral condensation technique. Results: The clinical and radiographic examination after 1 month showed the patient was asymptomatic and revealed mild repair of the lesion. Radiograph at 12 months revealed the lesion appears to be healing correctly with total integration and proper function of the dental structures. Conclusions: Large periapical lesions of endodontic origin can be treated with conservative non-surgical endodontic retreatment allowing complete repair without surgical intervention.
Endodontic retreatment after resorcinol-formaldehyde resin “Russian Red” cement endodontic therapy: case report, Apr 2016
La resina de Resorcinol-formaldehido ha sido un material de terapia
endodóntica en muchos países ... more La resina de Resorcinol-formaldehido ha sido un material de terapia endodóntica en muchos países de Europa Oriental, Rusia, China e India. Su uso se promovió debido a su alto efecto antimicrobiano. Después de su polimerización, se forma un material sumamente duro de color rojizo que hasta el día de hoy no se le conoce solvente alguno. Si se requiere un retratamiento, los métodos más populares utilizados para su remoción son mediante el uso de fresas, limas y/o aparatos de ultrasonido. El propósito de este artículo es proporcionar al clínico, un método rápido y eficaz para eliminar el cemento “Ruso Rojo”. Palabras Clave: Retratamiento, Ruso Rojo, Resorcinol, Formaldehido.
Resorcinol-formaldehyde resin has been a unique method of endodontic therapy in Eastern Europe, Russia, China and India. Its use was promoted due to its highly antimicrobial effect. After its mixture, it becomes a brick hard paste of reddish color. To date, there is no known solvent employed for its removal. If retreatment is needed, the most popular methods used for its removal are mechanical means that use burs, files, and/or ultrasonic devices. The purpose of this publication is to aid clinicians with a quick and effective method on the removal of Russian Red cement. Keywords: Retreatment, Russian Red, Resorcinol, Formaldehyde.
Nonsurgical endodontic retreatment of extensive periapical lesions, Sep 2015
Background: The aim of this paper is to report a non-surgical endodontic retreatment with a large... more Background: The aim of this paper is to report a non-surgical endodontic retreatment with a large periapical lesion fully repaired. The afflicted tooth was a maxillary left lateral incisor in a 42-year-old woman.
Methods: The endodontic retreatment was carried out in multiple sessions, irrigation with 2.5% sodium hypochlorite and Vitapex® as intracanal medication. After 120 days, the root canal was irrigated with passive ultrasonic irrigation of 16% EDTA and 20% Citric Acid followed by a final rinse of 6% sodium hypochlorite. The tooth was filled with gutta-percha and Sealapex® sealer by the lateral condensation technique.
Results: The clinical and radiographic examination after 1 month showed the patient was asymptomatic and revealed mild repair of the lesion. Radiograph at 12 months revealed the lesion appears to be healing correctly with total integration and proper function of the dental structures.
Conclusions: Large periapical lesions of endodontic origin can be treated with conservative non-surgical endodontic retreatment allowing complete repair without surgical intervention.
Objectives: To evaluate the histopathological findings of 128 persistent apical radiolucent lesio... more Objectives: To evaluate the histopathological findings of 128 persistent apical radiolucent lesions of endodontic origin obtained during apical resective surgery. Materials and methods: The case group was composed of 128 biopsies obtained through apical surgery were examined establishing the diagnosis as either periapical granuloma, radicular cyst, or abscess. The radiographic size of the lesion (area in cm2) before surgery and after two years of follow-up was measured. A statistical study was performed using analysis of variance. The hypothesis tests were conducted at the 0.05 level of significance. Results: The study comprised 128 patients, 79 women (61.71%), and 49 men (38.28%) with a mean age of 43.54 years. The histopatological analysis of the 128 apical lesions, it was found that 74.21% were from the maxilla, especially from the anterior teeth and premolars, and 25.78% from the mandible, inclusive of 72.6% granulomas, 23% periapical cysts, and 5% periapical abscesses. Apical l...
The purpose of this study was to determine if the Light Speed system compared to the Balanced For... more The purpose of this study was to determine if the Light Speed system compared to the Balanced Forces technique and the Profile system is a reliable rotary method that allows cleaning and widening of the curved root canal system equal to or better than manual instrumentation techniques or methods. Natural permanent teeth were used, where the centering and cleaning of the instrumentation was measured by means of stereoscopic microscopy, which is achieved with the Light Speed system, Profile and the Balanced Forces Technique. All the teeth used in the study were cross-sectioned every 2mm - 3mm and re-bonded in such a way that the space of the canal could be analyzed before being instrumented under the three methods of cleaning and widening. This maneuver allowed to obtain sections of the tooth in the three root thirds of the tooth, in such a way that for each third a fragment of the tooth was taken to identify the previous and subsequent condition to the instrumentation.
Aim: To report an uncommon case of an extraoral sinus tract of the facial region caused by a toot... more Aim: To report an uncommon case of an extraoral sinus tract of the facial region caused by a tooth with an acute apical abscess in the mandible. Case report: Established on oral examination and radiographic examination, an Acute Apical Abscess (cellulitis/phlegmon) of tooth 47 was diagnosed, which had resulted in a cutaneous sinus tract. The continuous purulent discharge of the sinus tract in the facial right region ceased after drainage and extraction of tooth 47. Conclusion: It is challenging to diagnose and identify a cutaneous draining sinus tract of dental origin. Thus, treatment of skin lesions of the face (impetigo), and neck odontogenic infections should always be considered. Clinical and radiographic dental examinations can identify the tooth involved.
Objective: To determine whether controlled final irrigation protocol after cleaning and shaping p... more Objective: To determine whether controlled final irrigation protocol after cleaning and shaping procedures would result in a reduced acute pain rate of single versus two-visit RCT of teeth with necrotic pulp and apical periodontitis: A multicenter clinical trial. Methodology: Ninety patients were treated. Working length was established with electronic device and confirmed radiographically. For mechanical enlargement, the Twisted file adaptive, and Protaper Next instruments were used in brushing rotary movement and reciprocating mode correspondingly. For the control group, Balanced Force technique was employed. A controlled Final irrigation protocol was used in all groups. The same clinical protocol was used in three different cities of Mexico. Results: The distribution of clinical samples was 45 teeth to one-visit and 45 teeth to two-visit treatment. Two cases (2.5%) experienced acute pain in teeth that receive an RCT. Of the earlier Asymptomatic/symptomatic teeth, the treatment was...
The aim of this study was to evaluate the outcome of single- versus 2-visit root canal treatment ... more The aim of this study was to evaluate the outcome of single- versus 2-visit root canal treatment of teeth with apical periodontitis after a 2-year follow-up period. Three hundred maxillary and mandibular nonvital teeth with apical periodontitis were treated in either a single visit or 2 visits. The main inclusion criteria were radiographic evidence of apical periodontitis (minimum size ≥ 2.0 × 2.0 mm) and a diagnosis of pulpal necrosis confirmed by a negative response to hot and cold tests. Radiographically, all teeth showed small and irregular periapical radiolucencies before treatment. The canals were enlarged with LightSpeedLSX (Discus Dental, Culver City, CA) root canal instruments to a final apical preparation size #60 for anterior and premolar teeth and size #45 to #55 for molars. The EndoVac negative-pressure irrigation system (Discus Dental) was used for disinfecting irrigation, and all canals were filled by lateral compaction of gutta-percha and Sealapex sealer (SybronEndo, Orange, CA). The healing results were clinically and radiographically evaluated 2 years postoperatively. Of the 300 teeth treated, 18 were lost to follow-up, 9 in the 2-visit group and 9 in the 1-visit group. Of the 282 teeth studied, the randomization procedure had allocated 146 teeth to 1-visit treatment and 136 teeth to 2-visit treatment. Teeth with symptoms of persisting periapical inflammation were scored as not healed. Teeth with a reduced periapical rarefaction were judged as uncertain. Teeth with complete restitution of the periodontal contours were judged as healed. In the 1-visit group, 141 of 146 teeth (96.57%) were classified as healed as compared with 121 (88.97%) of 136 teeth in the 2-visit group. Eleven cases were classified as uncertain in the 2-visit group (8.08%) compared with 4 (2.73%) in the 1-visit group. Two of 10 teeth in the 2-visit group presented with pain before the 2-year follow-up and were classified as not healed. The hypothesis tests were conducted at the 0.05 level of significance. Statistical analysis of the healing results did not show any significant difference between the groups (P = .05). Several factors play an important role in the decision-making process of 1- versus 2-visit endodontics. Among these are objective factors like preoperative diagnosis, the ability to obtain infection control, root canal anatomy, procedural complications, and subjective factors like patients' signs and symptoms. This study provided evidence that with a treatment protocol with instrumentation to predefined larger apical instrumentation sizes and irrigation with a negative apical pressure system can lead to healing in cases of apical periodontitis, which is a significant finding compared with more dated studies that showed average healing of apical periodontitis cases. With the given sample size, there was no statistically significant difference between the 2 treatment modalities.
Objective: Was to identify which lubricant was the best separating medium for taking an impressio... more Objective: Was to identify which lubricant was the best separating medium for taking an impression for an endodontic post and to determine which could be completely and rapidly eliminated from the walls of the post space. Materials and Methods: Sixty endodontically treated maxillary incisor teeth were used. They were divided into six groups, 10 teeth in each group. Each group used a different lubricant except group 6 which served as the control. Results: All five experimental groups showed that the oil and grease of the lubricants were difficult to totally eliminate from the porous dentinal surface when washed with 2cc of 96% ethyl alcohol. A post space prepared with Gates Glidden drills results in many opened dentinal tubules. These were filled with impression material when lubricants of groups I and III were used. The best results were obtained with groups 4 and 5 although some impression material remained in the deeper (middle) portion of the post space. Conclusions: This study showed that urea peroxide and glycerin and liquid hand soap were the most effective lubricating agents and were easier to remove from the post space walls with 2cc of 96% ethyl alcohol as compared with lubricants composed of mineral oil, glycerin or Dura Lay separator.
Nonsurgical endodontic retreatment of extensive periapical lesions, Sep 2015
Background: The aim of this paper is to report a non-surgical endodontic retreatment with a large... more Background: The aim of this paper is to report a non-surgical endodontic retreatment with a large periapical lesion fully repaired. The afflicted tooth was a maxillary left lateral incisor in a 42-year-old woman. Methods: The endodontic retreatment was carried out in multiple sessions, irrigation with 2.5% sodium hypochlorite and Vitapex® as intracanal medication. After 120 days, the root canal was irrigated with passive ultrasonic irrigation of 16% EDTA and 20% Citric Acid followed by a final rinse of 6% sodium hypochlorite. The tooth was filled with gutta-percha and Sealapex® sealer by the lateral condensation technique. Results: The clinical and radiographic examination after 1 month showed the patient was asymptomatic and revealed mild repair of the lesion. Radiograph at 12 months revealed the lesion appears to be healing correctly with total integration and proper function of the dental structures. Conclusions: Large periapical lesions of endodontic origin can be treated with conservative non-surgical endodontic retreatment allowing complete repair without surgical intervention.
Endodontic retreatment after resorcinol-formaldehyde resin “Russian Red” cement endodontic therapy: case report, Apr 2016
La resina de Resorcinol-formaldehido ha sido un material de terapia
endodóntica en muchos países ... more La resina de Resorcinol-formaldehido ha sido un material de terapia endodóntica en muchos países de Europa Oriental, Rusia, China e India. Su uso se promovió debido a su alto efecto antimicrobiano. Después de su polimerización, se forma un material sumamente duro de color rojizo que hasta el día de hoy no se le conoce solvente alguno. Si se requiere un retratamiento, los métodos más populares utilizados para su remoción son mediante el uso de fresas, limas y/o aparatos de ultrasonido. El propósito de este artículo es proporcionar al clínico, un método rápido y eficaz para eliminar el cemento “Ruso Rojo”. Palabras Clave: Retratamiento, Ruso Rojo, Resorcinol, Formaldehido.
Resorcinol-formaldehyde resin has been a unique method of endodontic therapy in Eastern Europe, Russia, China and India. Its use was promoted due to its highly antimicrobial effect. After its mixture, it becomes a brick hard paste of reddish color. To date, there is no known solvent employed for its removal. If retreatment is needed, the most popular methods used for its removal are mechanical means that use burs, files, and/or ultrasonic devices. The purpose of this publication is to aid clinicians with a quick and effective method on the removal of Russian Red cement. Keywords: Retreatment, Russian Red, Resorcinol, Formaldehyde.
Nonsurgical endodontic retreatment of extensive periapical lesions, Sep 2015
Background: The aim of this paper is to report a non-surgical endodontic retreatment with a large... more Background: The aim of this paper is to report a non-surgical endodontic retreatment with a large periapical lesion fully repaired. The afflicted tooth was a maxillary left lateral incisor in a 42-year-old woman.
Methods: The endodontic retreatment was carried out in multiple sessions, irrigation with 2.5% sodium hypochlorite and Vitapex® as intracanal medication. After 120 days, the root canal was irrigated with passive ultrasonic irrigation of 16% EDTA and 20% Citric Acid followed by a final rinse of 6% sodium hypochlorite. The tooth was filled with gutta-percha and Sealapex® sealer by the lateral condensation technique.
Results: The clinical and radiographic examination after 1 month showed the patient was asymptomatic and revealed mild repair of the lesion. Radiograph at 12 months revealed the lesion appears to be healing correctly with total integration and proper function of the dental structures.
Conclusions: Large periapical lesions of endodontic origin can be treated with conservative non-surgical endodontic retreatment allowing complete repair without surgical intervention.
Uploads
Papers by Jorge Paredes Vieyra
Methods: The endodontic retreatment was carried out in multiple sessions, irrigation with 2.5% sodium hypochlorite and Vitapex® as intracanal medication. After 120 days, the root canal was irrigated with passive ultrasonic irrigation of 16% EDTA and 20% Citric Acid followed by a final rinse of 6% sodium hypochlorite. The tooth was filled with gutta-percha and Sealapex® sealer by the lateral condensation technique.
Results: The clinical and radiographic examination after 1 month showed the patient was asymptomatic and revealed mild repair of the lesion. Radiograph at 12 months revealed the lesion appears to be healing correctly with total integration and proper function of the dental structures.
Conclusions: Large periapical lesions of endodontic origin can be treated with conservative non-surgical endodontic retreatment allowing complete repair without surgical intervention.
endodóntica en muchos países de Europa Oriental, Rusia,
China e India. Su uso se promovió debido a su alto efecto antimicrobiano.
Después de su polimerización, se forma un material
sumamente duro de color rojizo que hasta el día de hoy no se le
conoce solvente alguno. Si se requiere un retratamiento, los métodos
más populares utilizados para su remoción son mediante el
uso de fresas, limas y/o aparatos de ultrasonido. El propósito de
este artículo es proporcionar al clínico, un método rápido y eficaz
para eliminar el cemento “Ruso Rojo”.
Palabras Clave: Retratamiento, Ruso Rojo, Resorcinol, Formaldehido.
Resorcinol-formaldehyde resin has been a unique method of endodontic
therapy in Eastern Europe, Russia, China and India. Its use
was promoted due to its highly antimicrobial effect. After its mixture,
it becomes a brick hard paste of reddish color. To date, there is
no known solvent employed for its removal. If retreatment is needed,
the most popular methods used for its removal are mechanical
means that use burs, files, and/or ultrasonic devices. The purpose of
this publication is to aid clinicians with a quick and effective method
on the removal of Russian Red cement.
Keywords: Retreatment, Russian Red, Resorcinol, Formaldehyde.
Methods: The endodontic retreatment was carried out in multiple sessions, irrigation with 2.5% sodium hypochlorite and Vitapex® as intracanal medication. After 120 days, the root canal was irrigated with passive ultrasonic irrigation of 16% EDTA and 20% Citric Acid followed by a final rinse of 6% sodium hypochlorite. The tooth was filled with gutta-percha and Sealapex® sealer by the lateral condensation technique.
Results: The clinical and radiographic examination after 1 month showed the patient was asymptomatic and revealed mild repair of the lesion. Radiograph at 12 months revealed the lesion appears to be healing correctly with total integration and proper function of the dental structures.
Conclusions: Large periapical lesions of endodontic origin can be treated with conservative non-surgical endodontic retreatment allowing complete repair without surgical intervention.
Methods: The endodontic retreatment was carried out in multiple sessions, irrigation with 2.5% sodium hypochlorite and Vitapex® as intracanal medication. After 120 days, the root canal was irrigated with passive ultrasonic irrigation of 16% EDTA and 20% Citric Acid followed by a final rinse of 6% sodium hypochlorite. The tooth was filled with gutta-percha and Sealapex® sealer by the lateral condensation technique.
Results: The clinical and radiographic examination after 1 month showed the patient was asymptomatic and revealed mild repair of the lesion. Radiograph at 12 months revealed the lesion appears to be healing correctly with total integration and proper function of the dental structures.
Conclusions: Large periapical lesions of endodontic origin can be treated with conservative non-surgical endodontic retreatment allowing complete repair without surgical intervention.
endodóntica en muchos países de Europa Oriental, Rusia,
China e India. Su uso se promovió debido a su alto efecto antimicrobiano.
Después de su polimerización, se forma un material
sumamente duro de color rojizo que hasta el día de hoy no se le
conoce solvente alguno. Si se requiere un retratamiento, los métodos
más populares utilizados para su remoción son mediante el
uso de fresas, limas y/o aparatos de ultrasonido. El propósito de
este artículo es proporcionar al clínico, un método rápido y eficaz
para eliminar el cemento “Ruso Rojo”.
Palabras Clave: Retratamiento, Ruso Rojo, Resorcinol, Formaldehido.
Resorcinol-formaldehyde resin has been a unique method of endodontic
therapy in Eastern Europe, Russia, China and India. Its use
was promoted due to its highly antimicrobial effect. After its mixture,
it becomes a brick hard paste of reddish color. To date, there is
no known solvent employed for its removal. If retreatment is needed,
the most popular methods used for its removal are mechanical
means that use burs, files, and/or ultrasonic devices. The purpose of
this publication is to aid clinicians with a quick and effective method
on the removal of Russian Red cement.
Keywords: Retreatment, Russian Red, Resorcinol, Formaldehyde.
Methods: The endodontic retreatment was carried out in multiple sessions, irrigation with 2.5% sodium hypochlorite and Vitapex® as intracanal medication. After 120 days, the root canal was irrigated with passive ultrasonic irrigation of 16% EDTA and 20% Citric Acid followed by a final rinse of 6% sodium hypochlorite. The tooth was filled with gutta-percha and Sealapex® sealer by the lateral condensation technique.
Results: The clinical and radiographic examination after 1 month showed the patient was asymptomatic and revealed mild repair of the lesion. Radiograph at 12 months revealed the lesion appears to be healing correctly with total integration and proper function of the dental structures.
Conclusions: Large periapical lesions of endodontic origin can be treated with conservative non-surgical endodontic retreatment allowing complete repair without surgical intervention.