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Take a look at our guidance to help you carry out your\u00A0\u003C/span\u003E\u003Ca rel=\u0022noreferrer noopener\u0022 href=\u0022https://www.scouts.org.uk/volunteers/staying-safe-and-safeguarding/risk-assessments/\u0022 target=\u0022_blank\u0022 class=\u0022Hyperlink SCXW226333948 BCX0\u0022\u003Erisk assessment\u003C/a\u003E, including examples.\u003Cspan\u003E\u00A0\u003C/span\u003E\u00A0\u003C/li\u003E\n\u003Cli class=\u0022Paragraph SCXW226333948 BCX0\u0022\u003EMake sure all young people and adults involved in the activity know how to take part safely.\u003C/li\u003E\n\u003Cli class=\u0022Paragraph SCXW226333948 BCX0\u0022\u003EMake sure you\u2019ll have enough adult helpers. You may need some parents and carers to help if you\u2019re short on helpers.\u00A0\u003C/li\u003E\n\u003C/ul\u003E\n\u003Ch3\u003EPlanning and setting up the activity\u003C/h3\u003E\n\u003Cul\u003E\n\u003Cli\u003EThis activity dives into the real science of tooth decay and how sugar messes with your mouth. You\u2019ll learn why what you eat matters and how you can protect your teeth. Before running this activity, be familiar with the Stephan Curve. This shows how sugar affects your mouth\u2019s pH level over time. You can check out this \u003Ca rel=\u0022noopener\u0022 href=\u0022https://jamiethedentist.com/dental-caries-decay/stephan-curve/\u0022 target=\u0022_blank\u0022 title=\u0022The Stephan Curve\u0022\u003Eshort guide\u003C/a\u003E.\u003C/li\u003E\n\u003Cli\u003EMake sure you have a way to draw your graph and any equipment you need. If you\u0027re using plain paper, draw the axis or grid lines in advance.\u003C/li\u003E\n\u003C/ul\u003E\n\u003Ch3\u003ERunning the activity\u003C/h3\u003E\n\u003Col\u003E\n\u003Cli\u003EAsk everyone what they think causes tooth decay. When you\u2019ve finished the discussion, explain that there are four key factors. The four factors are the tooth\u2019s surface, bacteria (from plaque), sugar (bacteria\u2019s food, turns into acid) and time (so how long the acid sits on teeth).\u003C/li\u003E\n\u003Cli\u003EAsk everyone which of the four factors they can try to control. Sugar and time are two key ones.\u003C/li\u003E\n\u003Cli\u003ENow, take paper, pens and draw the Stephan Curve.\u003C/li\u003E\n\u003Cli\u003ELabel the Y-axis with pH, ranging from 3 pH to 8.5 pH.\u003C/li\u003E\n\u003Cli\u003ELabel the X-axis with time, ranging from 6am to midnight.\u003C/li\u003E\n\u003Cli\u003EDraw a line through 5.5 pH across the graph. This is the critical pH at which teeth start dissolving.\u003C/li\u003E\n\u003Cli\u003ELabel anything below 5.5 pH as the danger zone. This is where tooth enamel is safe and doesn\u2019t dissolve.\u003C/li\u003E\n\u003Cli\u003ELabel anything above 5.5 pH as the safe zone. This is where tooth enamel is safe and doesn\u2019t dissolve.\u003C/li\u003E\n\u003Cli\u003EPlot three short dips below pH 5.5 (representing the impact of three meals). These dips should be brief and show how pH drops after eating but returns quickly to the safe zone. These dips represent the acidic environment that temporarily occurs after meals, when food and drink lower pH in the mouth.\u003C/li\u003E\n\u003Cli\u003EPlot several longer dips below pH 5.5 for frequent snacking. These dips should be more prolonged than the meal-related dips and may extend over a longer period.\u003C/li\u003E\n\u003Cli\u003EShade the area below pH 5.5 on the graph to show when teeth are exposed to acid and at risk of damage.\u003C/li\u003E\n\u003Cli\u003ENow, you\u2019ve finished the Stephen Curve.\u003C/li\u003E\n\u003Cli\u003EAsk everyone what they think the graph shows about snacking habits. Frequent snacks cause pH to stay in the danger zone for extended periods, increasing the potential for enamel erosion.\u003C/li\u003E\n\u003Cli\u003EAsk if anyone would want to change anything about how often you eat sugary snacks or drinks. What swaps could you make, such as water instead of high-sugar drinks or having fewer snacks? 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