Cryotherapy as a Topical Anesthetic in Healthy Children

In this study, the investigators aimed to compare the effects of topical anesthetic materials and cold application on pain perception. The main questions it aims to answer are: * Is cold application is effective as a topical anesthetic replacement? * Is there a difference on pain perception between cold and room temperature topical anesthetic? The treatment contains of participants selected from a group of patients who requires dental treatment. The mission of the participants is to answer the questionnaires correctly and cooperate the treatment. Participants will be divided into 4 groups containing 25 child per group: * First group: topical anesthetic spray solution. * Second group: topical anesthetic gel * Third group: Cryotherapy as distilled water * Fourth group: Cryotherapy as topical anesthetic spray solution. All participants will answer questionnaire of pain, anxiety and taste. The oxygen saturation and pulses will be measured with a pulse-oxymeter device to be recorded.