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Carbonate apatite (CO3Ap) cement is a biocompatible material with the ability to induce osteogenesis and is widely studied as the bone substitute material. The similarity of bone to tooth structure in their organic and inorganic composition offers a good prospect of the application of CO3Ap for regeneration of dentin and pulp tissue repair. This study is a sequel of the previous study in the development of CO3Ap cement for dental application, particularly in pulp capping treatment. In this study, the CO3Ap cement is used to cover an exposed dental pulp in rats and histological evaluation was carried out to evaluate the formation of reparative dentin, which is one of the signs of positive pulp capping treatment outcome. The CO3Ap cement was made by combining 60% dicalcium phosphate anhydrous (DCPA) and 40% vaterite with 1 mol/L Na2HPO4 aqueous solution at liquid to powder ratio of 0.5 and conventional calcium hydroxide [Ca(OH)2], which is the golden standard for pulp capping material was used for control. The coronal part of dental pulp in Wistar Rat was exposed with a small dental bur until bleeding were visible. The CO3Ap cement was applied to the exposed pulp and covered with light cured glass ionomer cement. The same protocol was applied to the control groups using Ca(OH)2. The Evaluation of formation of reparative dentin was done in 3 weeks after application by histological observation. Reparative dentin was histologically visible for all samples in CO3Ap group, as well as in the Ca(OH)2 groups. None of the dental pulps were necrotic and the pulp showed no heavy chronic inflammation. The CO3Ap cement was able to maintain the vitality of the pulp with no sign of chronic inflammation. The formation of reparative dentin was observable in 3 weeks of evaluation. Investigation on other properties and in vivo studies in different types of perforation and animal are to be carried out for further development of this material in dental application.

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Wound healing is a biological response that occurs following a trauma or pathologic condition of the oral mucosa. Wounds require proper management so they may heal faster and without complication. The number of fibroblast cells seen in the oral mucosa is a strong indicator of wound healing. In the remodelling phase of wound healing, fibroblast cell proliferation decreases as collagen fibres are synthesized. Noni leaf (Morinda citrifolia L.), a part of the noni plant, is traditionally used to heal soft tissue wounds in Indonesia. The leaves have potential chemical compounds that may be useful in the wound repair process. Objective: This paper aims to examine the effect of ethanol based pastes of the Indonesian noni leaf on oral mucosa wound healing by investigating visual wound closure and fibroblast cell counts in Wistar rats. Methods: Rats were divided into 2 control groups and 4 treatment groups. The pastes were formulated in concentrations of 2.5%, 5%, 10%, and 20% and were applied onto wounds of the oral mucosa of the rats. One control group was given no medication and the other control group had an ethanol gel with a concentration of 10% noni leaf extract applied to their intraoral wounds. Result: Result revealed that all groups treated with noni leaf paste experienced better wound closure (p<0.05) when compared to the control groups. Fibroblast cell counts showed little significance amongst all groups (p=0.143), however fibroblast cell counts of groups treated with noni leaf paste, of all concentrations, were lower than both control groups. Conclusion: These results suggest that topical application of noni leaf paste promotes better oral mucosa wound healing than gel formulas but shows no significant difference in the amounts of fibroblasts during the remodelling phase.

The inflammatory response is one of natural process in the body to protect itself following tissue injury, but it can cause discomfort. Noni (Morinda citrifolia L.) leaf known as a traditional medicament to help reduce the inflammatory effect. The leaves empirically applied as a wrapping on fever or wound. The purpose of this study was to identify the anti-inflammatory effect of topical noni leaf extract paste in 5% and 10% concentration by examination of Wistar rat paw edema induced by λ-carrageenan. Twenty-four Wistar rats divided into four groups, which were negative control, positive control with diclofenac sodium 1% gel, 5% noni leaf, and 10% noni leaf paste groups. Paw edema was induced by intraplantar injection of 1% λ-carrageenan to every rat. Every treatment subsequently applied in the plantar area before injection, and the changed paw volume measured with plethysmometer at minutes 0, 30, 60, and 90. This study was at the Animal Laboratory, Faculty of Medicine, Universitas Jenderal Achmad Yani, Cimahi city in October–December 2017. The result displayed that the minimum volume after 90 minutes was on 5% and 10% noni leaf paste group, which is 1.00 mL. Kruskal-Wallis test result of inflammatory percentage was significantly different among every group in each examination time (p<0.05). Post-hoc test showed that inflammatory reduction on paw edema with noni leaf paste application on both concentrations were significantly different compared to the negative control. However, it was not different from the positive control group. This study showed that application of noni leaf paste in 5% and 10% concentration could help reduce inflammatory response on skin possibly by the active anti-inflammatory ingredients of noni leaf. EFEK PASTA EKSTRAK DAUN MENGKUDU (MORINDA CITRIFOLIA L.) TOPIKAL TERHADAP EDEMA KAKI TIKUS GALUR WISTAR YANG DIINDUKSI KARAGENANInflamasi adalah proses alami tubuh untuk melindunginya setelah cedera, namun hal tersebut dapat menyebabkan ketidaknyamanan. Daun mengkudu (Morinda citrifolia L.) dikenal sebagai obat tradisional untuk menurunkan efek inflamasi yang secara empiris digunakan untuk mengobati demam dan luka. Tujuan penelitian ini adalah mengetahui efek anti-inflamasi pasta ekstrak daun mengkudu melalui pemeriksaan edema kaki tikus yang diinduksi karagenan-λ. Dua puluh empat tikus galur Wistar dibagi menjadi 4 kelompok, yaitu kontrol negatif dengan akuades, kontrol positif (aplikasi gel Na diklofenak 1%), serta perlakuan pasta daun mengkudu 5% dan 10%. Edema dibuat dengan menginjeksi intraplantar tikus dengan 1% karagenan-λ pada tiap kelompok. Tiap-tiap perlakuan diaplikasikan sebelum tikus diinjeksi dan perubahan volume kaki tikus diukur dengan pletismometer di menit ke-0, 30, 60, dan 90. Penelitian ini dilakukan di Laboratorium Hewan, Fakultas Kedokteran, Universitas Jenderal Achmad Yani, Kota Cimahi pada Oktober–Desember 2017. Hasil pengukuran memperlihatkan penurunan volume edema kaki terkecil setelah 90 menit pada kelompok pasta daun mengkudu 10%, yaitu 1,00 mL. Hasil Uji Kruskal-Wallis terhadap persentase inflamasi berbeda nyata pada tiap kelompok dan tiap waktu pengamatan (p<0,05). Hasil uji beda menunjukkan bahwa penurunan inflamasi kaki tikus pada perlakuan pasta daun mengkudu kedua konsentrasi berbeda nyata dibanding dengan kontrol negatif, tetapi tidak berbeda dengan kontrol positif. Penelitian ini menunjukkan bahwa pasta daun mengkudu 5% dan 10% dapat membantu menurunkan reaksi inflamasi kulit dan efeknya sejalan dengan Na diklofenak karena zat aktif yang bersifat anti-inflamasi dalam daun mengkudu.