Ca(OH)2 used in endodontics is made with Ca(OH)2 powder, a vehicle and a radiopacifier. Most common radiopacifiers are barium sulfate, bismuth or compounds containing iodine or bromine. While radiopacifiers make the calcium hydroxide more visible radiographically, some radiopacifiers are known to resorb at a slower pace, sometimes making it difficult to see the subtle changes.
While the control of a paste material at the apex of a canal can be very difficult, the resorptive properties of calcium hydroxide make it a very forgiving material. Extrusion of calcium hydroxide past the apex of a tooth is not uncommon. In fact, there are some who would recommend deliberate extrusion in the case of a large, chronic periapical lesion to help in the healing of such a lesion.
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhtId-DNdYor9hQ1GFUjRDEpvxz3iHe9kpXQeEpP3yrYU1Te27nGGr5TXIzAEArVscoOledNQcKU6wKZ7y4fSu6QTvc9FKcTDbdDb1iOoMlq8CUhSkthIN-rY2E4ZEN544pe-75hl3dvQA/s400/CalciumResporption1.jpg)
Calcium hydroxide (Ultracal - Ultradent - 35% Ca(OH)2
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgL1WM1vs-4KGfAfOBTCYpvT7oC3pJ1M5l0kpucwGbZ7OeS7yXiuP33Vns-ccirJWoW3Ua16gR4HfsWK8c9Xgg75bQwnY0XAG5r3Ls2Re1Y6z785ZAhfwPgK6b_r_75iiGO853gw9Z_vLI/s400/ultracalxs.gif)
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjynMRel_mXzyIyo_B3iAJhYsrMPAP4Cktlt3jzQlOIxoApicW7dWyGJdAF6fVUsp1Y4JFlrPB3R-PY7ofeS3Wben1pH0J8vDjLDJ4ttMGGD2Ud-ixGLa1x2DSvwgtiDJGtQRSjfLeeN1k/s400/CalciumResorption2.jpg)
14 months later, the patient returned for treatment of #14. Our recall radiograph of #15 shows complete resorption of Ca(OH)2. The patient had no complaints and is in full function.
Sources:
Hasan Orucoglu, Funda Kont Cobankara, "Effect of Unintentionally Extruded Calcium Hydroxide Paste Including Barium Sulfate as a Radiopaquing Agent in Treatment of Teeth with Periapical Lesions: Report of a Case", Journal of Endodontics, July 2008 (Vol. 34, Issue 7, Pages 888-891)
3 comments:
Muy bueno su blog.
Gracias por compartir toda esta información.
Estoy administrando un blog de periodoncia: PERIOBLOG donde encontrarán artículos, presentaciones, etc referidas a la periodoncia.
También estoy empezando un nuevo blog: ODONTOLOGÍA ACTUAL donde pongo a disposición artículos en inglés traducidos al español. También pueden enviar artículos (en inglés) que deseen que sean traducidos. También hay una encuesta para elegir los próximos artículos a ser traducidos.
Espero su visita.
Saludos.
Thank you for maintaining your blog, I check it regularly and find it quite an interesting resource for broadening my understanding of endo therapy.
I have a question regarding your position on other medicaments; specifically what are you thoughts on the use of cortocosteroid/antibiotic pastes and cements for treating emergency cases or near pulp exposures?
Many thanks,
Sam
This is a very interesting resources of endodontic topic. It's very informative. Thank you for sharing this. Dentistry makes our oral health achieve its best.
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